- Quantifying the Privacy Guarantees of Validatory Privacy Mechanisms
Ethereum Research post that quantifies how well network-layer mechanisms hide validators' IP addresses from their consensus messages. Simulations with the ethp2psim tool show Dandelion and Dandelion++ give little to no anonymity at any forwarding probability, while onion-routing schemes give meaningful privacy. Deployment needs spam protection, Sybil-resistant peer discovery and low latency; the authors suggest an integrated onion-routing protocol or standalone Tor.
ethresear.chpaperPublished and added 2 Nov 2026π‘οΈ Security
Your Benchmark Is an Empirical Measure Over DifficultyThe paper treats a benchmark as an empirical measure over item difficulty and formalizes two failure modes: measure mismatch (benchmark difficulty distribution differs from the intended one) and coverage gaps (uncovered difficulty regions that hide localized training progress). It proposes two diagnostic metrics with theoretical guarantees and analyzes 25 popular benchmarks across 7 domains using estimated item difficulties. It also introduces BenchFill, a difficulty-targeted item rewriting algorithm that reduces local coverage gaps.
huggingface.copaperAdded 31 Oct 2026π§ AI
WorkFactory: Turning Professional Intents into Executable Work for Scalable Agent TrainingWorkFactory is a framework that builds coherent, executable professional tasks for training working agents. It plans an information support graph from professional intents, then uses probe executions to find and repair missing or inconsistent task information. The authors built 112,686 tasks across 612 occupations and fine-tuned Qwen models at 4B, 27B and 35B-A3B (WorkPilot). WorkPilot-35B-A3B rose from 879 to 1565 Elo on GDPval-AA v2.1.
huggingface.copaperAdded 30 Oct 2026π§ AI
GPT-Rosalind-6 System Card AddendumGPT-Rosalind-6 System Card Addendum is OpenAI's safety documentation for a life-sciences model that shares weights with GPT-6 Astra. It rates the model High in Biological and Chemical and Critical in Cybersecurity under the Preparedness Framework. It reports biology evaluations, trusted-access controls, biosecurity refusal pass rates, a historical cyber jailbreak regression (14.3% task success), and sabotage and monitor-evasion results.
deploymentsafety.openai.compaperPublished and added 30 Oct 2026π‘οΈ Security
RADIOlogy: A Single-Pass Approach to Training-Free Zero-Shot Anomaly DetectionRADIOlogy is a training-free, single-pass zero-shot anomaly detection method that uses multi-head attention pooling in vision-language models. It scores anomalies by contrasting average similarity between vision features and sets of normal and abnormal prompts, with no windowed execution. RADIO agglomerative features drive a dense refinement pipeline for pixel-level segmentation, and the method is applied to medical images.
arxiv.orgpaperAdded 31 Oct 2026, published 29 Oct 2026π§ AI
VeriCUA: Verification as Agentic Exploration for Computer-Using AgentsVeriCUA is a platform-agnostic framework that verifies task completion by computer-using agents through agentic exploration. The verifier inspects context to build a task rubric, then picks GUI or code checks for unresolved requirements and combines findings under explicit evidence rules. It works online and offline across desktop, mobile and web, and agrees better with reference labels than the baselines, with the largest offline gains on hard cases.
arxiv.orgpaperAdded 31 Oct 2026, published 29 Oct 2026π§ AI
PhysCount: Do MLLMs Count Visual Appearances or Physical Entities?PhysCount is a benchmark of 546 real-world images and 4,595 human-written questions in 651 target-specific groups. It tests whether multimodal LLMs can separate visible appearances (direct view, reflections, glass) from the physical entities behind them. Across 40 MLLMs, counting appearances is much easier than linking them to entities, and the best model answers every question correctly in only 13.36% of groups.
arxiv.orgpaperAdded 31 Oct 2026, published 29 Oct 2026π§ AI
Glance: The Generator Is Its Own RerankerGlance is a RAG method in which the generator also reranks. It adds a lightweight decision adapter and pointer head that score candidate passages from one shared prefill, so a single resident 9B backbone does generation and reranking. After 39 minutes of MS MARCO fine-tuning it reaches nDCG@10 of 0.741 on SciFact and 0.345 on NFCorpus, against 0.721 and 0.326 for bge-reranker-v2-m3. On 300 HotpotQA questions it improves answer F1 by 0.045 over cross-encoder-selected context. Evaluation covers two retrieval datasets, one QA dataset and one backbone family.
arxiv.orgpaperAdded 31 Oct 2026, published 29 Oct 2026π§ AI
Retrieving from Your Own Mistakes: On-Policy Training of Embedding Models for Multi-Hop Retrieval-Augmented GenerationOn-policy state training is a method for training chain embedding retrievers for multi-hop RAG on the states the encoder itself reaches, including those built on its own wrong retrievals. Each state is labeled with the earliest missing gold passage, other missing gold passages are masked, and updates are contrastive and mixed with teacher-forced states. It retrieves complete evidence more often than teacher-forced training and graph-based systems, and transfers to harder long-chain HotpotQA and 2WikiMultiHopQA variants the authors built.
arxiv.orgpaperAdded 31 Oct 2026, published 29 Oct 2026π§ AI
Agentic LLM reasoning in pediatric diabetes outcome prediction from multimodal medical recordsCEDAR (Clinical Evidence-Driven Agent for Risk-prediction) is an evidence-citing, self-auditing LLM pipeline for predicting pediatric diabetes outcomes at 24 months from 18 months of records. On 2,489 youth with type 2 diabetes and 4,018 with type 1, pooled AUROC was 0.815 versus 0.656 to 0.700 for trained ML in T2D, and 0.756 versus 0.603 to 0.631 in T1D. Only 4 of 70,246 cited values mismatched the chart. Two pediatric endocrinologists matched its predictions in about nine of ten cases.
arxiv.orgpaperAdded 31 Oct 2026, published 29 Oct 2026π§ AI
The Athlete as a Scientist of One: Agentic Bayesian Experimental Design for Individualized Physiology from Consumer WearablesEpiCoach is an agentic system that treats one cross-country mountain biker as an N-of-1 experiment. Claims live in an evidence-gated hypothesis registry, and each must make a probabilistic prediction before a session. Predictions come from a digital twin fitted to heart rate, GPS and altitude. In a replay over eighteen months the twin beat standard forecasters on heart rate but not segment time, and the agent loop matched a static model. In the first three live weeks, the ledger sealed 20 predictions and scored 14, and a safety officer vetoed the agent twice. The registry, benchmark and protocol are released.
arxiv.orgpaperAdded 31 Oct 2026, published 29 Oct 2026π§ AI
Don't Lose the Thread: Empowering Long-Horizon LLM Agents with Cognitive Resource Self-AllocationCORAL (Cognitive Resource Self-Allocation) is an agent-callable working-memory toolset that lets an LLM agent checkpoint task progress and verified facts, then reset its cluttered context and resume from a clean state. A Multi-episode Agentic Reinforced Policy Optimization algorithm trains the checkpointing. With an 8B model it reaches 42.8% average accuracy on GAIA, uses 6-7x fewer input tokens than a ReAct agent, and adds 8.0 points to a proprietary agent on BrowseComp.
arxiv.orgpaperAdded 31 Oct 2026, published 29 Oct 2026π§ AI
A Unified Hessian-Guided Framework for Post-Training QuantizationThis preprint proposes a unified post-training quantization framework for large language models. It derives a Hessian-guided approximation of the output change caused by joint weight and activation quantization, using a tractable Fisher approximation. Quantization ranges, linear transformations and weight rounding are optimized together under one output-sensitivity objective. The authors report gains over state-of-the-art transformation and rounding methods in channel-wise and block-wise settings.
arxiv.orgpaperAdded 31 Oct 2026, published 29 Oct 2026π§ AI
Decompose, Estimate, Select: Coverage-Aware Context Construction for Long-Form RAGDecompose, Estimate, Select is a coverage-aware retrieval pipeline for long-form RAG. It splits a query into subquestions, ranks candidates with a coverage-trained bi-encoder, predicts a document-by-subquestion coverage matrix with a cross-encoder, and picks documents by greedy maximum-marginal coverage. On TREC RAG 2024, Ξ±-nDCG@10 rises from 0.625 to 0.702 (gold-nugget bound 0.718). A grounded self-feedback loop raises V_strict by 0.086 over two passes.
arxiv.orgpaperAdded 31 Oct 2026, published 29 Oct 2026π§ AI
MAServeBench: Benchmarking Multi-Agent LLM Serving Systems with Hierarchical Collaboration WorkloadsMAServeBench is a benchmark that treats multi-agent collaboration as a configurable dimension of LLM serving workloads. Its composable stages model how agents coordinate and exchange context in documented multi-agent workflows, and Hierarchical Semantic Traces record operations and dependencies for reproducible comparisons. Task-linked measurements tie workloads to GPU/NPU behavior, showing serving efficiency does not always mean timely task completion. Code is released.
arxiv.orgpaperAdded 31 Oct 2026, published 29 Oct 2026π§ AI- Stop Calling Them Provers: The Case for Calling ProVerif and Tamarin Symbolic Protocol Analyzers
Nadim Kobeissi's ePrint paper 2026/2683 argues that ProVerif and Tamarin should be called symbolic protocol analyzers, not provers. It audits their published soundness arguments, finding false statements, missing proofs and gaps between paper and implementation, and reproduces reported Tamarin bugs that accept false claims. It also covers model gaps in parsers and state machines, weak secrecy queries and unjustified primitive equations. The page is an abstract only.
eprint.iacr.orgpaperAdded 31 Oct 2026, published 29 Oct 2026π‘οΈ Security
M-PFT: Angular Margin for Calibrated Prompt-Tuning of Fine-Tuned Vision-Language ModelsM-PFT is an angular-margin method for prompt tuning of vision-language models that fixes base-to-novel dual miscalibration (underconfidence on base classes, overconfidence on novel classes). It adds two losses: minimizing the maximum cosine similarity between tunable class embeddings, and minimizing angular distance to each zero-shot embedding. Tests on 9 prompt-tuning methods and 15 datasets show lower novel-class calibration error at comparable accuracy and negligible overhead.
arxiv.orgpaperAdded 31 Oct 2026, published 29 Oct 2026π§ AI- Cryptanalysis and Enhancement of VTBSAE: Provably Secure Verifier-Based PAKE Protocols for the Industrial Internet of Things
Cryptanalysis of VTBSAE, a verifier-based PAKE protocol for the Industrial Internet of Things, showing it fails to resist client impersonation after server compromise. The authors propose E-VTBSAEv1, which binds the client point E1 to fresh server randomness, and prove AKE security and forward secrecy in the random-oracle model under CDH. Raspberry Pi 4B tests show runtime comparable to VTBSAE with the same communication and storage overhead.
eprint.iacr.orgpaperAdded 31 Oct 2026, published 29 Oct 2026π‘οΈ Security
Aligning Medical Vision Language Models at the Capability Boundary with Entropy Adaptive Rubric GroundingMedCBR is a two-stage alignment framework for medical vision language models. Difficulty Weighted Boundary Preference Optimization (DBPO) trains on counterfactual preference pairs at the model's capability frontier. Entropy Gated Grounded Policy Optimization (EGPO) then applies distilled clinical rubrics according to prediction entropy. It reaches 61.2% average accuracy on six medical benchmarks, with the largest gains on differential diagnosis, and the two stages combine super-additively.
arxiv.orgpaperAdded 31 Oct 2026, published 29 Oct 2026π§ AI
SEAL: Sealed Queries for Local Sanitization against Indirect Prompt InjectionSEAL is a defense against indirect prompt injection for local LLM agents. It learns a soft prompt and scoring readout offline, then uses a frozen task model to score and delete injected tokens from tool outputs, with queries built from trusted initial context. On AgentDojo, attack success falls from 34.6% to 0.1% and Joint rises from 51.4% to 77.5%, using about 127x fewer defense tokens than PISanitizer.
arxiv.orgpaperAdded 31 Oct 2026, published 29 Oct 2026π‘οΈ Security- Optimality and Efficiency of Higher-Order Rank-Based Side-Channel Attacks against Inner Product Masking Schemes
HO-ASPA (Higher-Order Adjusted Spearman Coefficient Analysis) is a rank-based, non-profiling side-channel distinguisher. The paper derives its optimal form against two-share Boolean masking and inner product masking under Hamming weight and LSB leakage. It finds no significant gap between higher and lower orders for HO-ASPA, unlike HO-CPA, and reports that it beats Kruskal-Wallis-based attacks in simulated and real-world experiments.
eprint.iacr.orgpaperAdded 31 Oct 2026, published 29 Oct 2026π‘οΈ Security - High Precision Noise Cleaning for CKKS with Application to Asynchronous Threshold CKKS
High Precision Noise Cleaning for CKKS is an IACR ePrint preprint (2026/2675) by Zhihao Li, Cheng Hong and Tao Wei. It composes lower-degree Hermite polynomials to reach output noise bounds such as 2^-300 for noise flooding, and uses this to build an asynchronous threshold CKKS scheme with strong simulation security in the random oracle model. In OpenFHE, binary-message cleaning falls from 9.63 s to 1.54 s.
eprint.iacr.orgpaperAdded 31 Oct 2026, published 29 Oct 2026π‘οΈ Security
REALM: Identifying Minimal Task Assets for LLM AgentsREALM (Required Execution Assets Linked to a Mission) is an approach to applying least privilege to LLM agents by identifying the assets a task needs, including ones discovered at runtime. It models assets as Dependency Graph nodes, separates discovering an asset from authorizing it, and exposes resource-bound Partial APIs inside a Task Container. On AgentDyn with qwen3.5-flash, attack success rate falls from 16.6% to 0.2%, with 40.0% task completion on clean tasks and 36.4% on injected cases.
arxiv.orgpaperAdded 31 Oct 2026, published 29 Oct 2026π‘οΈ Security
DICE: Decentralized Incentive-driven Federated Learning for Efficient & Scalable Customization of Pretrained Models in Web3DICE is a blockchain-powered federated learning (BCFL) algorithm for customizing large pretrained models among untrusted Web3 participants. It combines dynamic progressive learning and model slice verification, so hardware-limited participants can train part of the model, with a tree-structured committee consensus protocol and an efficiency-driven incentive scheme to scale to more data holders. Experiments cover vision and language models.
arxiv.orgpaperAdded 31 Oct 2026, published 29 Oct 2026π§ AI- Cryptography and Security Papers (@FSFG) on X
PrivacyEvalClaw is a tool-augmented deliberative agent that audits privacy leakage in LLM jailbreak responses. The paper is by Krishna Kanth Nakka and co-authors, and it was accepted to AACL-IJCNLP 2026 (arXiv 2610.36711, cs.CR). The tweet gives only the title, authors and venue, so the method and results are not described.
x.compaperAdded 30 Oct 2026, published 29 Oct 2026π‘οΈ Security - Cryptography and Security Papers (@FSFG) on X
PrivacyEvalClaw is a tool-augmented deliberative agent for auditing privacy leakage in LLM responses produced under jailbreak prompts. By Krishna Kanth Nakka and five co-authors, the paper is on arXiv (cs.CR) and accepted to AACL-IJCNLP 2026. The fetched post gives only the title, authors and venue, so method details and results are not available here.
x.compaperAdded 30 Oct 2026, published 29 Oct 2026π§ AI
Appreciation Teaches Unauthorized Execution: Self-Evolution Degrades the Robustness of Personal Agents to Indirect Prompt InjectionPaper studying whether self-evolution weakens personal agents' robustness to indirect prompt injection (IPI). A two-phase method has the user ask the agent to follow tasks in external content, then tests with a third-party injected task the user did not authorize. Against the non-evolving base agent, attack success rose 14.0 to 48.8 points under skill evolution and 3.0 to 39.3 points under reinforcement learning. Code is released.
arxiv.orgpaperAdded 31 Oct 2026, published 29 Oct 2026π‘οΈ Security
PCM: A Proof-Carrying Message Protocol for Verifiable Multi-Agent CommunicationProof-Carrying Messages (PCM) is a protocol where each claim an AI agent sends carries evidence: records from an append-only Merkle log the agent cannot write, with inclusion proofs, signed by an attesting signer. Receivers verify offline in about 1 ms and label each claim proven, unproven or failed. On 926 messages (712 lies in 16 classes), PCM accepts 10 lies (1.4%), all stale evidence; plain A2A accepts all 712.
arxiv.orgpaperAdded 31 Oct 2026, published 29 Oct 2026π§ AI
PCM: A Proof-Carrying Message Protocol for Verifiable Multi-Agent CommunicationProof-Carrying Messages (PCM) is a protocol where each claim an AI agent sends carries evidence: records from an append-only Merkle log the agent cannot write, with inclusion proofs, signed by an attesting signer it cannot control. Receivers verify offline and mark each claim proven, unproven or failed. On 926 messages (712 lies in 16 classes) PCM accepted 10 lies, all stale evidence (1.4%), while plain A2A accepted all 712. Verification takes about 1 ms.
arxiv.orgpaperAdded 31 Oct 2026, published 29 Oct 2026π‘οΈ Security
TrussTutor-Bench: Benchmarking large language models on solution accuracy, sycophancy, and error detection in staticsTrussTutor-Bench is a benchmark of 200 verified two-dimensional truss problems from statics, paired with automatically generated student solutions. It evaluates thirteen LLMs on solution accuracy (64.5% to 97.0%), error detection (90.4% to 100%) and sycophancy. Models rejected their own correct solutions in 1.6% to 50.0% of cases when a student insisted the work was wrong. Sycophancy separated models; error detection did not.
arxiv.orgpaperAdded 31 Oct 2026, published 28 Oct 2026π§ AI
Gold vs.~Translation: Are We Measuring Language, Knowledge, or Locality in Translated Benchmarks?Gold vs. Translation is an October 2026 arXiv study of whether DeepL-translated MMLU measures the same thing as native benchmarks. It compares seven pairings against six native benchmarks in five Nordic and Baltic languages, using 29 models. Translated MMLU adds predictive value for curriculum-overlap benchmarks such as Skolprov (ΞRΒ²=.128) but not for Sweden-specific SwedishFacts (p=.242).
arxiv.orgpaperAdded 30 Oct 2026, published 28 Oct 2026π§ AI
Leaving, Staying, or Living There? Duration Commonsense Reasoning with Human-LLM Co-annotationsThis paper studies whether vision-language models can infer how long a person stays somewhere (living, staying, or leaving) from geotagged social media posts. The authors build a new corpus of geotagged tweets co-annotated by humans and LLMs. State-of-the-art models struggle even with multi-turn Chain-of-Thought prompting, often missing contextual cues and subtle hashtags while over-relying on prominent visual details.
arxiv.orgpaperAdded 30 Oct 2026, published 28 Oct 2026π§ AI
inkGround: Benchmarking Fine-grained Visual Grounding Capabilities of Vision-Language Models for Cursive Handwriting in the WildinkGround is a benchmark for stroke trajectory recovery from full-page, camera-captured handwriting, with 537 page images (about 18.7k words, 163k strokes) and pseudo-label references filtered by OCR agreement and human raters. Models get a page image and a target word, then output ordered stroke points. Seven VLMs were scored with DTW, Chamfer distance, readability and style similarity. Closed-source models, notably Gemini-3.1-Pro, did best, and the ranking held on IAM-OnDB.
arxiv.orgpaperAdded 30 Oct 2026, published 28 Oct 2026π§ AI- Cryptography and Security Papers (@FSFG) on X
Log-To-Leak is an arXiv paper (cs.CR, cs.AI) by Yuepeng Hu, Chongyu Fan, Sirat Samyoun and Jian Du on prompt injection attacks against tool-using LLM agents through the Model Context Protocol. The title points to a logging-based data leakage channel. The fetched page holds only the title, authors and arXiv link, with no abstract, so the method and results are not visible here.
x.compaperAdded 29 Oct 2026, published 28 Oct 2026π‘οΈ Security
Quantize by Doing: Task-Guided Mixed-Precision Quantization of Vision-Language-Action ModelsQbD-VLA is a mixed-precision post-training quantization method for vision-language-action models. It uses task success from short closed-loop evaluations to assign weight and activation bit widths, accounting for interactions between components. On four VLA models across all four LIBERO suites it holds task performance at about 4-bit weights and under 6-bit activations. The gain on SIMPLER is small. On a Franka Research 3 arm, X-VLA shows no detected loss, but Ο0.5 fails.
arxiv.orgpaperAdded 30 Oct 2026, published 28 Oct 2026π§ AI
Secure Transaction Verification and Authorization (STVA)Secure Transaction Verification and Authorization (STVA) is a draft Standards Track ERC (created October 2026) by @MATOBOYCRYPTO65. It proposes structured human-readable metadata and semantic intent for transactions and UserOperations, an independent simulation and verification interface, and scoped, revocable capability tokens for privileged operations. It targets blind signing and frontend supply-chain attacks, citing the February 2025 Bybit Safe multisig theft. The page gives only the abstract, motivation and core concepts.
ethresear.chpaperPublished and added 28 Oct 2026π‘οΈ Security
Beyond the Event Horizon of Keccak, Extending the Observation from 2011 and applicationsBeyond the Event Horizon of Keccak extends a 2011 observation that a path in the Keccak sponge from a zero-capacity state back to one yields infinite second-preimage families. Three theorems cover loops from any capacity value x, k-block loops and cycles, and Joux-style multicollisions with search cost independent of k. Verified examples run on Keccak-f[200] and Keccak-f[1600] with c=32; it also proposes bridge-based protocols.
eprint.iacr.orgpaperPublished and added 28 Oct 2026π‘οΈ Security
Think Before You Act: Decision Gate for LLM AgentsJevAct is a runtime verification framework that intercepts selected LLM agent actions before execution and returns feedback for bounded revision. It compiles domain policies into executable state checks and structured questions scored by a prefill-only decision model, giving probability-based judgments without generation. Tested on eleven agents with tau^2-bench Airline and Telecom and BFCL, it gained consistently on Telecom and BFCL and was mixed on Airline.
arxiv.orgpaperAdded 30 Oct 2026, published 28 Oct 2026π§ AI
Repairs for Whom? Evaluator-Executor Mismatch in Selecting Repairs for Failed LLM AgentsRepairs for Whom? studies single-step repairs of failed LLM agent trajectories and asks whether common evaluators (greedy replay, stronger models, oracles, log-reading judges) pick repairs that help the deployed agent. Using independent rollouts in ALFWorld and WebShop, greedy replay loses 0.06-0.13 in expected gain, and Qwen2.5-14B rollouts misselect repairs for Qwen2.5-7B. The authors recommend verifying repairs with the executor that will run them.
arxiv.orgpaperAdded 30 Oct 2026, published 28 Oct 2026π§ AI
Data Scaling Laws in Stereo Matching: From In-domain Fitting to Cross-domain GeneralizationThis paper studies data scaling laws in stereo matching and releases XStereo, a realistic synthetic dataset of 200 thousand samples. In-domain training on five large datasets shows two regimes: a standard power law, then saturation, with a transition point roughly fixed for a given model. Cross-domain performance depends only weakly on source data scale, and distribution and coverage diversity reduce domain gaps more.
arxiv.orgpaperAdded 30 Oct 2026, published 28 Oct 2026π§ AI
Session-Bound Behavioral Watermarking for Autonomous LLM AgentsAgentAnchor is a session-keyed behavioral watermark for attributing LLM agent trajectory logs to an owner. It derives per-step keys from a secret key, a fresh public session ID and semantic observation states, and embeds parity evidence through a KL-bounded exponential tilt. The paper formalizes learned cross-session forgery, and a trusted verifier checks disputed logs using wrong-key calibration and abstention.
arxiv.orgpaperAdded 30 Oct 2026, published 28 Oct 2026π‘οΈ Security
Session-Bound Behavioral Watermarking for Autonomous LLM AgentsAgentAnchor is a session-keyed behavioral watermark that lets an agent owner prove ownership of a trajectory log. Each step key comes from a secret key, a fresh public session identifier and semantic states of recent observations. Parity evidence is embedded through a KL-bounded exponential tilt of action choices. A trusted verifier checks disputed logs without rerunning the agent, using wrong-key calibration and abstention. The paper also formulates a learned cross-session forgery threat.
arxiv.orgpaperAdded 30 Oct 2026, published 28 Oct 2026π§ AI
CALM: Conflict-Aware Lifecycle Memory Governance for Long-Horizon Language AgentsCALM is a conflict-aware lifecycle memory governance framework for long-horizon language agents. It turns records into evidence-grounded memory cells, updates their validity and lifecycle states from support, conflict and dependency signals, and admits evidence at query time through training-free or learned gating based on temporal applicability. It beats baselines on LongMemEval-S and LoCoMo with Qwen and GPT backbones, and keeping superseded records helps earlier-state reasoning.
arxiv.orgpaperAdded 30 Oct 2026, published 28 Oct 2026π§ AI
From Leniency to Suspicion: How an Open Post-Training Recipe Changes Whom LLM Fact-Checkers BelieveThis paper measures job-based doubt in LLM fact-checkers: judging a claim false more often when the poster has a lower-status job. It compares base and post-trained checkpoints of six model families on fact-checked claims with randomised poster profiles. Only the open TΓΌlu-3 recipe (OLMo-2 32B, TΓΌlu-3 70B) creates the effect, under one percentage point but reliable. In OLMo-2 32B the flip comes from one residual-stream direction and appears at supervised fine-tuning, confirmed on 400 new claims. None of seven commercial models doubts lower-status posters more.
arxiv.orgpaperAdded 30 Oct 2026, published 28 Oct 2026π§ AI
Benchmarking decision models against generative large language models on medical multiple-choice questionsThis preprint benchmarks 13 decision models against 15 generative LLM configurations, including different reasoning settings, on 1,273 text-only four-option MedQA questions. Accuracy ran 67.71% to 89.08% for decision models and 78.32% to 96.86% for generative configurations. Decision models were cheaper and faster, but answers with probability of at least 0.90 still had error rates of 1.71% to 12.77%, and probability repeatability varied across three runs.
arxiv.orgpaperAdded 30 Oct 2026, published 28 Oct 2026π§ AI
FlatCake: A Flat KVCache Storage Architecture for LLM ServingFlatCake is a KV cache storage architecture for LLM serving that treats host DRAM and NVMe SSD as peer media in one 64-bit address space, instead of a DRAM-over-SSD tier. Blocks are placed once, in session-contiguous, layer-major order, and streamed via GPUDirect Storage. On a Claude Code trace with DeepSeek-V4-Flash it holds a 94% hit rate (Mooncake: 64%) and cuts peak-load mean TTFT 1.6x.
arxiv.orgpaperAdded 30 Oct 2026, published 28 Oct 2026π§ AI
What Effort Level Should I Choose? On the Economics of Reasoning Effort in LLM AgentsThis paper treats LLM reasoning effort as a credence good and measures the counterfactual effect of effort levels on proprietary and open-weight models across four benchmarks, including long-horizon agentic tasks. Higher effort often fails on tasks lower effort solved, and on easy tasks the top level costs up to 42x the lowest. Starting at the lowest effort and escalating only after a verified failure matches or beats fixed top effort, usually at lower cost for proprietary models.
huggingface.copaperAdded 28 Oct 2026π§ AI
Post-Training Large Language Models with LLMONLLMON (LLM Object Notation) is a framework that separates instructions from data and requires explicit identifier-based execution. The authors post-train Granite-4.1 3B and 8B base models with SFT then RL on a 4.6B-token structured corpus covering general, RAG and tool-calling data, with distractor variants. Attack success rates on indirect prompt-injection benchmarks fall from 53-100% to 0.02-5.6%, and general capability is preserved. Attention-based metrics diagnose failures per transformer layer.
arxiv.orgpaperAdded 30 Oct 2026, published 28 Oct 2026π‘οΈ Security
Post-Training Large Language Models with LLMONLLMON (LLM Object Notation) is a framework that separates executable instructions from passive data and requires explicit identifier-based execution. The paper post-trains Granite-4.1 3B and 8B base models on a 4.6B-token corpus of general, RAG and tool-calling data with distractor variants, using SFT then RL. Attack success rates on indirect prompt-injection benchmarks fall from 53-100% to 0.02-5.6%, with general capabilities preserved. It also adds attention-based per-layer diagnostics.
arxiv.orgpaperAdded 30 Oct 2026, published 28 Oct 2026π§ AI
Locating Sycophancy Across Training Stages in Open Language ModelsLocating Sycophancy Across Training Stages in Open Language Models measures sycophancy in 13 open checkpoints from 5 lineages, from base model through supervised fine-tuning and preference optimization to release. It finds two behaviors with different origins: deference to a claim in the prompt exists in every base model, while capitulation under user objection is largely absent from base models and present in every post-trained checkpoint. Post-trained models often drop firmly held answers as readily as loosely held ones when the objection names an alternative.
arxiv.orgpaperAdded 30 Oct 2026, published 27 Oct 2026π§ AI
Can LLMs Uncover Hidden Physical Laws through Free Exploration?LongChang is an automated framework that builds simulated worlds with altered physical laws, such as heavier objects falling more slowly, to test whether LLMs can find the law by free exploration. Explorer LLMs manipulate objects and build tools without tasks or hints, while separate LLM agents generate scenes, review tool designs and grade reports. Across 12 LLMs, GPT-6 Astra reached a 16.7% discovery rate and the other 11 scored 0%.
arxiv.orgpaperAdded 28 Oct 2026, published 27 Oct 2026π§ AI
Scaling Laws for Tool-Use Agents via Controllable Environment SynthesisSynthAPI is a pipeline that generates synthetic tool-use environments with explicit control over diversity of tools, tasks and underlying databases. Across 458,752 tasks and 849 trained models of four sizes, the authors fit a scaling law predicting downstream agent generalization. At larger data budgets, scaling tool and database diversity beats adding more tasks, and higher complexity helps more. Agents trained this way beat prior synthetic-data baselines on four benchmarks.
arxiv.orgpaperAdded 28 Oct 2026, published 27 Oct 2026π§ AI
Metacognitive Decoding: Efficient Inference for Diffusion Language AgentsMetacognitive Decoding is a lightweight plug-in controller for diffusion language model backbones. It learns when to finalize tokens and how far generation should extend, and is trained on agent trajectories to balance correctness against generation cost. Across five benchmarks it cuts inference FLOPs by 20.6% on average versus the most efficient baseline, with competitive task accuracy. The abstract names no specific benchmarks or backbones.
arxiv.orgpaperAdded 28 Oct 2026, published 27 Oct 2026π§ AI
Know, then Draw: A New Learning Paradigm for Visual GenerationKnow, then Draw is a learning paradigm for visual generation that uses autoregressive pretraining to acquire semantic knowledge and diffusion post-training for high-fidelity rendering. Controlled comparisons find autoregression the stronger pretraining objective, and semantic quality matters more than AR-only generation quality. This motivates a purely semantic tokenizer trained with language supervision only. A 3B text-to-image model trained in 6,600 H100 GPU-hours scores 86 on GenEval and 87 on DPG-Bench.
arxiv.orgpaperAdded 28 Oct 2026, published 27 Oct 2026π§ AI
Perceiving and Predicting Dynamic Sports: Spatiotemporal Intelligence in Vision Models for Egocentric Tennis VideoThis paper presents an annotated egocentric tennis dataset (egocentric video synced with five allocentric views, global positions, contact times, stroke types) and evaluates image encoders, video encoders and vision-language models on seven prediction tasks. Best models reach 0.14 m player and 0.54 m ball localization error and 0.14 s contact-time error. Depth input helps 3D ball localization, and longer histories do not help forecasting. A conditional diffusion model generates whole-body tennis motion in real time.
arxiv.orgpaperAdded 28 Oct 2026, published 27 Oct 2026π§ AI
EnvSched: Environment-Aware Scheduling for Rollout-Efficient Agent Reinforcement LearningEnvSched is an online scheduler for agentic reinforcement learning that picks which environment-task pairs to roll out next. It builds a dual-relation graph over environments and tasks, propagates past rollout statistics to predict within-task reward variance, and adds environment quotas and a similarity penalty. On Qwen3-8B it scores 48.81 average on BFCL-v3, tau-Bench and ACEBench-Agent after 40 steps, above random selection at 120 steps.
arxiv.orgpaperAdded 28 Oct 2026, published 27 Oct 2026π§ AI
Interpretable Meta-Policies for Neural Decision MakingNEXUS is a hierarchical reinforcement learning framework that pairs neural skills with symbolic meta-policies, so transparent reasoning sits at the level of high-level skills rather than atomic actions. It uses object-centric observations and LLM interaction to design reward functions and meta-policies. Agents learn disentangled skills, align better with goals in the game manual, resist reward hacking more, and cope better with game simplifications than deep RL. The paper also compares neural, symbolic and neuro-symbolic meta-policy architectures.
arxiv.orgpaperAdded 28 Oct 2026, published 27 Oct 2026π§ AI- FeatureArc: Benchmarking Coding Agents on Evolving Features
FeatureArc is a benchmark for coding agents on evolving features, built by a pipeline that mines repository histories into multi-stage tasks across four programming languages. It has 73 manually reviewed tasks of 2 to 10 stages, validated with fail-to-pass and pass-to-pass tests. Across 10 agents, pooled success drops from 62.7% at the first stage to 28.5% for the whole feature. Inherited defects appear in 72.9% of failed later stages.
arxiv.orgpaperAdded 28 Oct 2026, published 27 Oct 2026π§ AI - When Visual Evidence Is Insufficient: How Instructions, Post-Training, and Internal Activations Shape Refusal in Multimodal Language Models
This paper studies how multimodal LLMs refuse questions that an image cannot answer, using the MoHoBench benchmark on three MLLMs. It varies the meaning and placement of refusal instructions, compares supervised and preference-based post-training, and intervenes on a refusal-related activation direction. Instructions change refusal at the sample level in ways aggregate rates hide. Post-training raises refusal most but can mix refusal with attempted answers. Activation intervention gives smaller, transferable changes.
arxiv.orgpaperAdded 28 Oct 2026, published 27 Oct 2026π§ AI
Towards Quantum Sensing for Side-Channel AnalysisPreprint on using nitrogen-vacancy (NV) center quantum sensing for electromagnetic side-channel analysis of ICs. The authors build an NV-based RF spectrometer with 1.1 GHz real-time bandwidth and adjustable center frequency, which reads the spectrum in the time domain without Fourier transforms or frequency sweeps. They use it on RSA decryption emanations and for leakage detection on a software Number Theoretic Transform running on a Cortex-M4 microcontroller.
eprint.iacr.orgpaperAdded 28 Oct 2026, published 27 Oct 2026π‘οΈ Security
LiveSearch: Questions as Executable Verifier Code for a Live Benchmark of Professional-Source Financial Search AgentsLiveSearch is a live benchmark for financial search agents that stores each question as executable verifier code: a typed program of calls to a professional financial data service plus a declarative extractor. Gold answers are recomputed daily with no human or LLM in the loop, so memorized answers go stale. Six tool-calling models score 70.9% to 76.7% under web search, and 70% of questions change gold value over three days.
arxiv.orgpaperAdded 28 Oct 2026, published 27 Oct 2026π§ AI
OpenGray: a benchmark for evaluating the decisions of radiotherapy planning agentsOpenGray is a benchmark that adds tasks with known correct decisions to the OpenKBP-Opt head-and-neck dataset, including two overlap contradictions with provably incompatible dose goals and a feasible control. Four planning systems, from a rule-based script to a full LLM agent, were tested on 30 patients with Terra and Ministral 3 8B. Decision accuracy reached 95.4% and 92.1%, yet only 50% and 25% of overlap contradictions were escalated. SAGE logs of 39 radiosurgery runs showed an agent that lacked an action for stopping.
arxiv.orgpaperAdded 28 Oct 2026, published 27 Oct 2026π§ AI
Tessera: Structure-Completed Evidence Units for Web Retrieval-Augmented GenerationTessera is a training-free evidence delivery layer for web retrieval-augmented generation. It rebuilds retrieved pages' HTML into fine-grained evidence units, each completed with page title, section path and table headers, then packs the relevant units into the reader context at the same token budget. Tracing evidence over full English Wikipedia shows chunking loses table and infobox content. Tessera adds 5 to 6 accuracy points on three QA benchmarks and carries over to agentic search.
arxiv.orgpaperAdded 28 Oct 2026, published 27 Oct 2026π§ AI
DCKV: Learned Transform Coding of the Prompt KV Cache in Hybrid Language ModelsDCKV is a differentiable codec for the prompt KV cache of hybrid language models, which keep a KV cache only in their few full-attention layers. Transform, quantizer and entropy models (conditioned on prompt tokens and already decoded neighbouring positions) are trained end to end against a frozen model. On Qwen3.5-2B it stores a token in over 55 times fewer bytes than bf16 with at most 1.8 points lost on three long-context benchmarks, and over 100 times fewer with at most 3.6 points lost.
arxiv.orgpaperAdded 28 Oct 2026, published 27 Oct 2026π§ AI
AxisQ: Depth-Adaptive Channel--Frequency Quantization for Camouflaged Object DetectionAxisQ is a post-training quantization framework for camouflaged object detection (COD) that allocates activation bits by feature depth. It uses the channel domain for shallow features and the local-frequency domain for deep features, under a fixed per-layer average bit budget. It adds a boundary-aware Hessian approximation for reconstruction. On CAMO at W2A2, weighted F-measure improves 12.7% for CFRN and 33.3% for CamoFormer-P over the strongest baselines.
arxiv.orgpaperAdded 28 Oct 2026, published 27 Oct 2026π§ AI
Unshuffling Fisher-Yates: Practical Recovery of Length-128 Permutations and Application to ML-DSAPaper (IACR ePrint 2026/2658) presenting a single-trace side-channel attack on a software Fisher-Yates shuffle of length 128, the butterfly count in one ML-DSA NTT layer. It removes rejection-sampling timing variation, extracts Hamming weight and identity leakage, and enumerates likely permutations with constraint programming. On a shuffled ML-DSA-44 NTT it recovers secret polynomial s1, fully or up to a few coefficients.
eprint.iacr.orgpaperAdded 28 Oct 2026, published 27 Oct 2026π‘οΈ Security
Poly2MsgLeaks: Certified Key Recovery from Polynomial-to-Message LeakagePoly2MsgLeaks is a profiled chosen-ciphertext power-analysis attack on the SMAUG-T (TiMER parameter set) post-quantum KEM that recovers the full 512-coefficient PKE secret from six traces on an STM32F415. It recovers 999 of 1,000 unseen secrets and proves an incorrect key is released with probability at most 2^-2095.6. Single-write message assembly and a two-share masked P2M resisted the evaluated six-execution attack.
eprint.iacr.orgpaperAdded 28 Oct 2026, published 27 Oct 2026π‘οΈ Security
Falcon Key Recovery from Joint Sampler LeakagesFalcon Key Recovery from Joint Sampler Leakages is an ePrint paper presenting a power side-channel attack on Falcon and FN-DSA that fuses three SamplerZ leakages (exponent class of the center, sign bit, proposal magnitude). It turns them into slab and halfspace constraints solved by softplus interval regression, with no LLL or BKZ. On PQClean Falcon-512 (ARM Cortex-M4) it recovered all 50 keys with at most 34 signatures; on c-fn-dsa it recovered 38 of 50 keys within 200 signatures.
eprint.iacr.orgpaperAdded 28 Oct 2026, published 27 Oct 2026π‘οΈ Security
OblivDGL: Oblivious Deep Graph Learning Made PracticalOblivDGL is a secure computation framework for GNN training and inference, modelled on Deep Graph Library. It uses an oblivious message-passing paradigm and an oblivious graph representation built on function secret sharing (FSS). It leaks only total node and edge counts. On four benchmark graph datasets it cuts training communication up to 1024x and runtime up to 14.3x against prior secure GNN systems.
eprint.iacr.orgpaperAdded 28 Oct 2026, published 27 Oct 2026π‘οΈ Security
OblivDGL: Oblivious Deep Graph Learning Made PracticalOblivDGL is a framework for secure GNN training and inference in machine-learning-as-a-service settings, modelled on Deep Graph Library. It uses an oblivious message passing paradigm and a new oblivious graph representation built on function secret sharing, revealing only the total node and edge counts. On four benchmark graphs it cuts training communication up to 1024x with up to 14.3x speedup, and inference communication up to 754x with 4.19x speedup.
eprint.iacr.orgpaperAdded 28 Oct 2026, published 27 Oct 2026π§ AI
Measuring Users' Security and Privacy Concerns About Third-Party Community Bots on DiscordMeasurement study of 23,102 third-party Discord bots and 183,142 user reviews (2021-2026, 49 languages). A fine-tuned DeBERTa classifier plus manual validation yields 8,832 security and privacy reviews, mapped to a 31-theme taxonomy; Data Sharing (30.5%) and Data Collection (16.2%) dominate. Permission count and admin status correlate only weakly with user concerns. The authors build BotLens, an MCP-server auditing framework with six tools.
arxiv.orgpaperAdded 28 Oct 2026, published 27 Oct 2026π‘οΈ Security
Folding Attention Biases into Keys Makes Compacted KV Caches Run on Standard KernelsThe paper folds the per-key logit bias of Attention Matching (AM) KV cache compaction into the keys along one closed-form direction per head, fitted on context queries. The result is a plain cache that FlashAttention and vLLM paged caches can use, with output error bounded by how far each query's projection on that direction is from 1. Unmodified vLLM serves folded caches through a KV connector. On QuALITY and LongHealth the fold is within noise of AM in 13 of 14 settings. Under AM's published per-head budgets it is within noise in 9 of 10.
arxiv.orgpaperAdded 28 Oct 2026, published 27 Oct 2026π§ AI
Trial by Trace: Benchmarking AI Agent Harnesses for Reliability and Failure AttributionTraceTrial-Bench is a benchmark that scores agent task performance and agent harness reliability separately. It has 95 mechanism-oriented tasks across seven components: context, execution, governance, lifecycle, observability, tools and verification. Across 4 harnesses, 9 models and 3,420 runs, macro-averaged harness scores range from 59.8% to 72.0%, and 31.1% of runs succeed despite failing at least one harness criterion.
huggingface.copaperAdded 27 Oct 2026π§ AI
AK_QMUL at ArGuard Shared Tasks: A Single Fine-Tuned JAIS for Arabic Harmful-Prompt DetectionAK_QMUL's system for the ArGuard-2026 shared tasks fine-tunes JAIS-6.7B with 4-bit QLoRA and a linear head on the last-token representation. For binary safe/unsafe detection (B1) it uses a four-way head over dialect register and AraSafe MSA augmentation, reaching macro-F1 0.984. For seven-way harm domain (B2) it averages five seeds, reaching 0.790. Both ranked first. Bully is the weakest class.
arxiv.orgpaperAdded 28 Oct 2026, published 26 Oct 2026π§ AI
Your Wish Is My Commit: Over-Compliant Refactoring in AI Coding AgentsYour Wish Is My Commit is a controlled study of over-compliant refactoring in Codex and Claude Code, run across five models, 50 algorithmic tasks and 10 object-oriented tasks. Over 3,000 turns of repeated "refactor further" prompts, no model stopped on its own: each rewrote up to 31x the original codebase before first stopping and resumed edits after declaring the task complete. The paper defines six behavioral signals for detecting over-compliance.
arxiv.orgpaperAdded 28 Oct 2026, published 26 Oct 2026π§ AI
Log-To-Leak: Prompt Injection Attacks on Tool-Using LLM Agents via the Model Context ProtocolLog-To-Leak is a prompt-injection attack on tool-using LLM agents that abuses Model Context Protocol tool metadata to trigger an attacker-controlled logging call after the last legitimate call, leaking the user query, server name, server response and agent response. Evaluated on five MCP servers and four agents, it reaches 62.64-100% attack success with 76.55-95.64% logging accuracy. Three defenses leave over 55% residual ASR on GitHub MCP with GPT-4o.
arxiv.orgpaperAdded 28 Oct 2026, published 26 Oct 2026π‘οΈ Security
Reva: Real-Time Vulnerability Detection through Contextual Probing of Large Language ModelsREVA (REal-time Vulnerability Analysis) is a vulnerability detector that puts a module threat model, lightweight static analysis findings and call-graph information into one LLM forward pass. A trained probe reads the model's internal representations of the new function. On PrimeVul's held-out test set, REVA on GLM-5.3-Flash reaches 60.0% accuracy in about one second per function, matching the agentic VulTriage (59.2%) at over 250 times the speed and under a tenth of the cost. The probe is 14% to 17% more accurate than the LLM's own verdict.
arxiv.orgpaperAdded 28 Oct 2026, published 26 Oct 2026π§ AI
Reva: Real-Time Vulnerability Detection through Contextual Probing of Large Language ModelsREVA (REal-time Vulnerability Analysis) is an LLM-based vulnerability detector that screens each new function in one forward pass. It feeds the model a pre-computed module threat model, lightweight static analysis findings and call-graph data, then reads the model's internal representations with a trained probe. On PrimeVul's held-out test set with GLM-5.3-Flash it reaches 60.0% accuracy in about one second per function, matching the agentic VulTriage (59.2%) while over 250 times faster.
arxiv.orgpaperAdded 28 Oct 2026, published 26 Oct 2026π‘οΈ Security
LINE-Break: Cryptanalysis and Reverse Engineering of Letter SealingLINE-Break is a security analysis of Letter Sealing v2, the custom end-to-end encryption protocol in the LINE messenger. A TLS man-in-the-middle attacker or malicious server can replay, reorder and block messages undetected, and colluding users can forge message authorship in one-to-one and group chats. Stickers and URL previews leak plaintext. The attacks were verified on the real iOS app and an independent implementation.
eprint.iacr.orgpaperPublished and added 26 Oct 2026π‘οΈ Security
Revisiting ZMAC+: Birthday-Bound Attacks and a Beyond-Birthday-Bound RepairZMAC+ is a tweakable-block-cipher MAC (List and Nandi, ToSC 2017) with claimed beyond-birthday-bound security. This ePrint paper (2026/2647) shows a tag-swap attack: for two-block tags, a distinguisher and a fresh-message forgery with constant success probability using O(2^{n/2}) queries in the ideal-TBC model. It also corrects a counting error in the published Lemma 4 and proposes a repaired variant with an adaptive PRF bound of order q^2/2^{n+min(n,t)}.
eprint.iacr.orgpaperPublished and added 26 Oct 2026π‘οΈ Security
Then there is prompt injection, a malicious email, ...: The Wild Wide West of OpenClaw Agentic System SecurityAn empirical study of security concerns in the OpenClaw AI personal assistant framework, using 25K+ posts from 13 subreddits (162 security-relevant) and 358 security-tagged GitHub issues (180 retained). It maps 521 CWE instances across 59 weakness types, concentrated in access control, sensitive-data exposure, injection and unsafe execution. It extracts 543 practitioner mitigations into seven strategies and reconstructs a sensitive-data exposure path with dummy secrets.
arxiv.orgpaperAdded 28 Oct 2026, published 26 Oct 2026π‘οΈ Security
Non-profiled Single-Trace ML-DSA Secret Key Recovery by Horizontal Distribution AnalysisNon-profiled single-trace side-channel attack on ML-DSA-65 (Dilithium) running on ARM Cortex-M4, by Linus Backlund and Elena Dubrova (KTH). It compares observed sample distributions with expected Hamming weight leakage using a Gaussian mixture model, and stacks partitioned trace segments for multiple observations. Information-set decoding corrects misclassifications; with a 2^70 enumeration budget, the full secret key is recovered from one trace in 99% of attacks, using secret key unpacking as the attack point.
eprint.iacr.orgpaperPublished and added 26 Oct 2026π‘οΈ Security
Scope-Gap Injection: Exploiting Evaluator Channel Blind Spots in the OpenClaw Agent Security CompetitionScope-Gap Injection (SGI) is an indirect prompt injection method for multi-stage LLM-agent safety pipelines, tested in the IJCAI 2026 OpenClaw Agent Security Attack Competition. The visible task and skill stay benign while target identifiers, bypass parameters and authorization steps sit in an attachment written as a business worklist, which the S2 LLM judge appears not to inspect. SGI bypassed all three stages (static scan, LLM judge, live audit) for 5 of 19 targets, best F = 0.385. Attachment placement had 78% S2 acceptance versus 23% in-skill. The paper closes with defenses that align evaluator scope with agent channels.
arxiv.orgpaperAdded 27 Oct 2026, published 26 Oct 2026π‘οΈ Security
SentryBench: A Cost-Sensitive Benchmark for Adversarial Robustness of Tool-Using LLM Agents in Public-Safety DeploymentsSentryBench is a benchmark for tool-using LLM agents in public-safety deployments. It scores attack success, over-refusal (missing a real emergency) and over-reaction (unwarranted action) on a cost-sensitive frontier, using real emergency-call transcripts, disaster messages and injection payloads. Across 840 episodes on three frontier models and three defenses, refuse-more caution pushed over-refusal to 100 percent on two models, while a trust-gating wrapper gave the lowest harm.
arxiv.orgpaperAdded 27 Oct 2026, published 25 Oct 2026π§ AI
SentryBench: A Cost-Sensitive Benchmark for Adversarial Robustness of Tool-Using LLM Agents in Public-Safety DeploymentsSentryBench is a benchmark for tool-using LLM agents in public-safety settings (public alerts, responder dispatch, citizen-record queries). It scores attack success, over-refusal and over-reaction on a cost-sensitive frontier, using real emergency-call transcripts and real injection/jailbreak payloads. Across 840 episodes on three frontier models and three defenses, refuse-more caution raised over-refusal to 100 percent on two models, while a trust-gating wrapper gave the lowest harm on every model.
arxiv.orgpaperAdded 27 Oct 2026, published 25 Oct 2026π‘οΈ Security
SymLift: Neural Semantic Lifting for Compile-Free Vulnerability Detection in Context-Incomplete Code FragmentsSymLift is a compile-free vulnerability detection framework for code fragments that lack project context. A fine-tuned LLM reconstructs control-flow, data-flow, memory and resource relations as a constrained LLVM-like IR, and a deterministic parser turns it into facts for Datalog rules that give findings with derivation traces. SymLift-Qwen-7B reaches 94.41% Target-F1 on FormAI and 91.66% micro-averaged Target-F1 on MegaVul.
arxiv.orgpaperAdded 28 Oct 2026, published 25 Oct 2026π§ AI
A KelseyβKohno Attack Variant against SHA-2 Message Digests in HSS/LMS and XMSSFalko Strenzke's ePrint 2026/2635 presents a multi-target second-preimage attack on message hashing in HSS/LMS and XMSS with SHA-256 and SHA-256/192. It herds chaining states from many collected signatures into one state, defeating the key and leaf-index prefix. With 2^64 signatures, SHA-256 cost falls from 2^256 to about 2^166 (2^156 at maximal message length). SHAKE256 parameter sets are unaffected.
eprint.iacr.orgpaperAdded 26 Oct 2026, published 25 Oct 2026π‘οΈ Security
The Policies of Programming Language Ecosystems: A "Qualitative" AnalysisThe Policies of Programming Language Ecosystems is an October 2026 arXiv paper (cs.SE) that compares the policies of eight programming language ecosystems, including CRAN for R, across 38 policy categories. Three authors coded the policies with moderate agreement. Malware, intellectual property and content removal are covered everywhere, while package size limits, metric manipulation, typosquatting and binary uploads diverge.
arxiv.orgpaperAdded 28 Oct 2026, published 25 Oct 2026π‘οΈ Security
Explaining Navigation Decisions: Stage-Aware Visual Attribution for Vision-Language NavigationA stage-aware visual attribution framework for Vision-Language Navigation (VLN) that explains a robot's action choices. It identifies "instruction-stage insensitivity", where existing explainers give similar outputs across navigation stages. The method builds action-conditioned temporal instruction-visual attributions, aggregates relevant historical evidence by stage, and applies an instruction-guided spatial filter. It improves attribution quality across several VLN policies and benchmarks, helps diagnose failure cases, and was tested on a Unitree G1 robot.
arxiv.orgpaperAdded 27 Oct 2026, published 25 Oct 2026π§ AI
The Patient Is Always Right? Evaluating Sycophancy in Medical Diagnosis with Graded Patient BeliefsThis paper evaluates sycophancy in medical diagnosis across nine AI models. Each model is shown clinical evidence plus a patient's belief in a specific but incorrect condition, with the belief's closeness to the evidence varied. Models adopted the belief 23.2% of the time on average, even for fictional conditions, and 43.0% under a Rare Disease Claimer persona. Medical fine-tuning and larger scale reduced susceptibility.
arxiv.orgpaperAdded 27 Oct 2026, published 25 Oct 2026π§ AI
Reversible Pseudonymisation of Documents Sent to External LLMs: an Open Bilingual Benchmark and an EngineOpen bilingual (Russian and UK English) benchmark of five open pseudonymisation tools and a regex baseline, plus a new engine built on the two strongest tools. On a held-out set of 1,000 synthetic documents per language, the best existing tools leave a whole personal value visible in 61% (Russian) and 58% (UK) of documents. The engine does so in 0.3% and 0.2%. Russian name restoration reaches only 94.6%, below the 99% threshold. Real documents were not tested.
arxiv.orgpaperAdded 27 Oct 2026, published 25 Oct 2026π‘οΈ Security
Reversible Pseudonymisation of Documents Sent to External LLMs: an Open Bilingual Benchmark and an EngineThis paper presents an open benchmark of five existing pseudonymisation tools and a regex baseline on Russian and UK English documents, plus an open engine built on the two strongest tools. On a held-out set of 1,000 synthetic documents per language, the best existing tools leave a whole value visible in 58 to 61% of documents. The engine does so in 0.2 to 0.3%. Russian name restoration reaches only 94.6%, below the 99% threshold. Real documents were not tested.
arxiv.orgpaperAdded 27 Oct 2026, published 25 Oct 2026π§ AI
Detecting and Understanding Ambiguity in Visualizations with Role-Playing Vision Language Model InterpretationsThis paper presents a pipeline that uses persona-conditioned vision language models to surface interpretive ambiguity in visualizations. Topic-relevant personas elicit candidate takeaways, and a Target-Pattern-Scope framework lets LLM judges label statement pairs as Compatible, Disjoint or Opposing, which are summarized in an ambiguity profile. The authors benchmark VLMs on chart comprehension per chart type, check labeling against human annotations, and run case studies on public visualizations and a redesign.
arxiv.orgpaperAdded 27 Oct 2026, published 25 Oct 2026π§ AI
InteractiveWorld: A Verifiable Human-Centric Environment for Building Better Interactive MLLM AssistantsInteractiveWorld is an environment for closed-loop interaction between an AI assistant and a simulated human agent who sees the scene, follows instructions and acts independently. InteractiveBench, built on it, has 120 multi-turn tasks in six categories scored by verifiable, state-based rewards. Across 12 frontier MLLMs, the best model, Claude Fable 5.1, reaches at most 20% on long-horizon Guidance and 25% on Planning tasks.
arxiv.orgpaperAdded 27 Oct 2026, published 25 Oct 2026π§ AI
Continual Learning Exam: Benchmarking Long-Horizon RSI and Experiential Learning in LLM AgentsContinual Learning Exam (CLE) is a benchmark of 120 human-authored tasks, each a five-level ladder (600 levels) across 89 professional roles and 12 occupational domains, built by 50+ domain experts. Agents must pass a level to unlock the next, and an evaluation agent scores submissions against human rubrics. Across 17 harness-model configurations, feedback plus one revision adds a median 5.3 points; the best system clears 47.7% of levels and finishes all five levels in 23.3% of tasks.
arxiv.orgpaperAdded 27 Oct 2026, published 25 Oct 2026π§ AI
HerHealthGPT: An Evidence-Grounded Conversational AI System for Women's Reproductive Health Copy titleHerHealthGPT is a conversational AI system for women's reproductive health that combines retrieval-augmented generation, context-aware clarification and source validation in a web interface. Evidence retrieval raises concern-category accuracy from 54.1% to 59.3% over fine-tuning alone on 540 messages from 90 cases. The clarification router reaches 85.6% recall and 86.2% specificity. In a 30-adult study, 83.3% preferred the retrieval-enabled version. The authors say clinical validation is still needed.
arxiv.orgpaperAdded 27 Oct 2026, published 24 Oct 2026π§ AI
DRILS: Dependency-based Requirement Change Impact Analysis Using LLMsDRILS is an LLM-based agentic framework for requirements change impact analysis. It uses multiple agents to generate candidate impact sets, with an LLM-as-a-judge promoting diversity in selection. It adds RE-RAG, a tuned retrieval technique, and a requirement dependency graph as a knowledge source. On three curated datasets it reaches 87.1% recall, 76.3% precision and 81% F1 at lower cost than baselines. The authors release the datasets.
arxiv.orgpaperAdded 27 Oct 2026, published 24 Oct 2026π§ AI
Ranking Is Not Deciding: Benchmark Shortcuts and Operating-Point Collapse in Query-Time RAG Poisoning DefensesRanking Is Not Deciding is an October 2026 arXiv paper showing that query-time RAG poisoning filters score near-perfectly because of how the poison set was built. PoisonedRAG's code prepends the target question to each passage. Removing that prefix takes RAGuard from AUROC 0.953 to 0.758 and its miss rate from 0.191 to 0.763. The authors release a script that profiles a poison set.
arxiv.orgpaperAdded 27 Oct 2026, published 24 Oct 2026π‘οΈ Security
Build, Don't Play: Self-Improving LLM Research Agents Develop a Hearthstone Battlegrounds AI That Rivals Top PlayersAutoTavern is a self-improving system of specialised LLM research agents with a typed shared memory and verification gates. In 20 days it built TavernGym, a full-content Hearthstone Battlegrounds simulator, and 23 versions of TavernAgent, a PPO-trained player. TavernAgent averaged placement 1.60 with 80% first places over its last 20 live games, beating the top ten players (2.34, 59%). On TavernBench (960 tasks), it answered 91% of play tasks against at most 63% for frontier LLMs.
arxiv.orgpaperAdded 27 Oct 2026, published 24 Oct 2026π§ AI
Sliding Networks: A Family of Residual Structures Preserving Feature Learning and Feature DiversitySliding Networks is a family of residual network structures with a joint width and depth scaling recipe that keeps both locally maximal feature learning and feature diversity in the residual stream. The key quantity is the ratio N_flat/(N_sharp L) tending to a constant alpha, and Half Copy correlated initialization can relax the shape constraints. Residual-MLP experiments support an SDE limit, but language-model experiments show performance differences under regrouping at fixed parameter count.
arxiv.orgpaperAdded 27 Oct 2026, published 24 Oct 2026π§ AI
IntentDelta: A Human-Constructed Benchmark for Evolving User IntentIntentDelta is a human-constructed multi-turn benchmark of 638 trajectories and 3,766 turns across WebShop and TravelPlanner. Each turn pairs a user utterance with a cumulative intention state and human reference actions. Across eleven agents, average Intention Recovery is 33.1% in TravelPlanner and 44.7% in WebShop, and average Action Score is 31.6% and 41.0%. Agents lose earlier requirements and confuse soft preferences with must-have constraints.
arxiv.orgpaperAdded 27 Oct 2026, published 24 Oct 2026π§ AI
TriageRAG: Failure-Aware Self-Training for Adapting Retrieval-Augmented Language Models to Specialized DomainsTriageRAG is a failure-aware self-training method for adapting retrieval-augmented LLMs to specialized domains using only an unlabeled corpus. It probes the student on self-generated questions with and without retrieved context, sorts them into known, solved, context-failure and retrieval-failure, and routes each to a matching training signal. With Qwen3-4B on 11 datasets it beats budget-matched SimRAG by 1.2-6.4 points and recovers closed-book accuracy where retrieval hurts.
arxiv.orgpaperAdded 27 Oct 2026, published 24 Oct 2026π§ AI
Eat Your Precision: Precision Objective Mitigates Reward Hacking in Rubric-based RLFORK is a reward for rubric-based reinforcement learning that jointly optimizes recall and a new precision objective. Precision requires each unit of a response to be necessary (rubric-driven necessity credits) and factually correct (a grader). Rubric-coverage rewards otherwise produce verbose, less accurate responses. FORK keeps similar coverage with shorter outputs, raising win rate against the base policy from 10.6% to 68.0% on RubricHub-Medical and from 22.1% to 74.1% on HealthBench.
arxiv.orgpaperAdded 27 Oct 2026, published 24 Oct 2026π§ AI
DualPace: Decoupled Scheduling and Cooperative GPU--CPU Decoding for LLM ServingDualPace is an LLM serving runtime that treats the host as an independently scheduled decode engine. A GPU engine runs prefills and GPU-resident decodes, while an AMX-enabled CPU engine batches and advances CPU-resident decodes, optionally calling GPU Dense Assist for dense stages. In decode-oriented scenarios it raises throughput 6.9 to 43.2% over NEO and 11.5 to 90.6% over vLLM at similar latency.
arxiv.orgpaperAdded 27 Oct 2026, published 24 Oct 2026π§ AI
IQuest-Q1: Advancing Foundation Capabilities for Agentic CLI SystemsIQuest-Q1 is an open-source sparse Mixture-of-Experts model with 320B total and 15B activated parameters, built for agentic coding in CLI systems. Pre-training combines Stable SplitNorm, Muon and muP with a two-stage curriculum that raises the coding-data share in stage two. Mid-training extends context, and post-training mixes SFT, domain-specialized RL and MOPD across scaffolds, followed by model merging.
huggingface.copaperAdded 24 Oct 2026π§ AI
What Transfers Across Protein Pockets? Experience Reuse in Molecular Optimization for Agentic Structure-Based Drug DesignThis paper studies experience reuse for LLM agents that optimize ligands in protein pockets by editing and docking. Using the full log of one agent run over CrossDocked2020 test-set pockets, it tests whether keys in an experience base recur on unseen pockets and separate improving from worsening edits. The separation is largely explained by molecule size change, action and round, not the target. The authors conclude a base may better prioritize an agent's own proposals for docking than prescribe what to build.
arxiv.orgpaperAdded 26 Oct 2026, published 23 Oct 2026π§ AI
OWLS: Open-world Language-conditioned Speed Fields for Zero-Shot Rover NavigationOWLS (Open-world Language-conditioned Speed Fields) plans directly over a vision-language model's dense feature map. A text prompt describing traversable terrain scores every pixel of one camera image. The scores are projected onto the ground, adapted with two morphological operations, and used as the speed field of a minimum-time planner. It needs no training, terrain labels, map or extra sensors. It was tested on a physical rover, on simulated Mars and Moon rovers over 200 procedural terrains, and on real planetary imagery.
arxiv.orgpaperAdded 26 Oct 2026, published 23 Oct 2026π§ AI
Faster and Smaller Anonymous Credentials from Standardized SignaturesGordieHowe is a language, certifying compiler and zero-knowledge proof system for building anonymous credentials on standardized signatures (ECDSA, RSA, ML-DSA). It proves an ECDSA-signed mobile driving license presentation in 64.8 ms with a 276 KiB proof, 10.1x faster than Google's Longfellow, and an ML-DSA-44 signature in 87.3 ms with at least 116 bits of quantum security. Compiler output and security theorems are checked in Lean. It introduces series-parallel IOPs and extends the BCS transformation in the QROM.
eprint.iacr.orgpaperAdded 24 Oct 2026, published 23 Oct 2026π‘οΈ Security
Standing on Open Shoulders: Regional Fine-Tuning of Open-Weight Camera-Trap Models for UK Wildlife with Modest Data and ComputeDeepFaune-UK is a fine-tune of the open DeepFaune camera-trap classifier on 28 UK classes, paired with MegaDetector v6. On 20,212 MammalWeb images it reached 88.8% strict accuracy against 56.5% (DeepFaune v1.5.0) and 59.0% (SpeciesNet). Re-applying the recipe to the DINOv3-based classifier gave 90.6%. Fine-tuning on about 150 crops per class matched full-data out-of-distribution accuracy, and a DINOv2 run took about 22 minutes on under 4 GB of GPU memory.
arxiv.orgpaperAdded 26 Oct 2026, published 23 Oct 2026π§ AI
UAV-SwarmAgent: Scalable Multi-UAV Reconnaissance and Task Allocation via Code Generation and Vision-Language ReasoningUAV-SwarmAgent is a hierarchical multi-agent system where an operator gives one natural-language sentence and a ground-station agent writes and runs code that produces per-UAV routes. A vision-language model grounds targets in an aerial map, and worker agents verify incidents with a compact onboard model. In simulation it located the incident in 244 of 255 missions (95.7%), and flight time followed an Amdahl-type law with speedup bounded at 1.52x for one to five UAVs.
arxiv.orgpaperAdded 26 Oct 2026, published 23 Oct 2026π§ AI
Tool-Calling LLM Agents Under Realistic MCP Faults: Scale Does Not Purchase Fault ToleranceMCP-Injector is a protocol-aware fault-injection middleware for Model Context Protocol tool calls, with permanent, transient and intermittent faults on seedable schedules. Its fault model comes from 57,240 issue and PR threads across 1,774 open-source MCP repositories. In a 1,350-cell experiment, faults cut task-completion score by 60% (8.08 to 3.23 of 10), and the 120B gpt-oss model was no more resilient than the 20B. Agent stacks differed in how well they absorbed faults.
arxiv.orgpaperAdded 26 Oct 2026, published 23 Oct 2026π§ AI
On Task, Off Track: Benchmarking LLM and Agent Robustness to Near-Target Prompt InjectionNTBench (Near-Target Benchmark) tests LLM and agent robustness to near-target prompt injection, where injected instructions steer a response toward a plausible but incorrect or harmful outcome instead of abandoning the task. It builds reference-guided target-instruction pairs on existing datasets, with human validation, and evaluates seven LLMs on ten language datasets and two agent benchmarks. Attack success rose 9.3 to 35.8 points (incorrect targets) and 1.7 to 17.3 points (harmful targets) over fixed-target baselines.
arxiv.orgpaperAdded 26 Oct 2026, published 23 Oct 2026π‘οΈ Security
DRIVE: Fine-tuning via Data Contribution- and Diversity-aware Weighting with Prior RegularizationDRIVE is a per-sample weighting framework for single-stage fine-tuning when the source pre-training data is unavailable. It uses one differentiable objective: Shapley additivity splits each sample's contribution into anti-forgetting and adaptation parts, a covariance-based diversity term reshapes them, and a sample-characteristic prior stabilizes them. The authors prove better stability-plasticity guarantees than existing weighting schemes and report better performance, faster convergence and more robustness.
arxiv.orgpaperAdded 26 Oct 2026, published 23 Oct 2026π§ AI
Accordion: Elastic-Depth Inference via Fixed-Prefix Layer LoopingAccordion is a mixture-of-experts language model (Accordion-6B-A0.5B) that supports five inference budgets through fixed-prefix layer looping, with the minimum budget being the unlooped model. After 3.6T pretraining tokens, deeper inference raises the macro-average over 37 tasks by 3.01 points, and the middle budget captures 89% of that gain with half the extra layer executions. SFT and RL keep the budgets, merging three domain experts via parameter-group merging and budget-matched multi-teacher on-policy distillation.
arxiv.orgpaperAdded 26 Oct 2026, published 23 Oct 2026π§ AI
Efficient Zero-Shot Video Anomaly Detection via Signal-Aware Adaptive Fusion (SAAF)Signal-Aware Adaptive Fusion (SAAF) is a training-free zero-shot video anomaly detection framework that cuts the compute cost of vision-language models. It combines a dual-signal sampler (frame-to-frame delta and rolling-context drift in embedding space, OR-gated with EMA thresholds), a threshold-gated cascade from frame-level to video-level analysis, and signal-aware score fusion. It reports AUC-ROC of 92.07% on XD-Violence, 86.70% on MSAD and 80.54% on ShanghaiTech, at 2.2x to 2.6x the throughput of the prior best zero-shot method.
arxiv.orgpaperAdded 26 Oct 2026, published 23 Oct 2026π§ AI
When Agents Fail: Model or Harness--Who's to Blame?When Agents Fail: Model or Harness--Who's to Blame? proposes five measures for evaluating agent harnesses together with their underlying models: Valid Completion Rate, Model-Harness Fit, Cross-Model Fit, Interaction Residuals and Token Load. It tests four harnesses (OpenCode, Codex CLI, Pi CLI, DeepAgents) with four models on six benchmarks, across 111 settings and 52,168 trajectories. Harness rankings change by model and benchmark. OpenCode ranks first in cross-model performance.
arxiv.orgpaperAdded 26 Oct 2026, published 23 Oct 2026π§ AI
SCI-AGENT-EXAM: Benchmarking Agents on Scientific Research TasksSCI-AGENT-EXAM is a workflow-oriented benchmark of 120 expert-curated tasks across 11 scientific fields and 7 task types from the Scientific Workflow Task Taxonomy (SWTT). Tasks need both executable and textual artifacts, scored by programmatic checks plus an expert-calibrated LLM judge. Ten frontier agents were tested: GPT-6 Astra scored highest at 80.9, but only 26.0% of its runs passed the 0.95 success threshold.
arxiv.orgpaperAdded 26 Oct 2026, published 23 Oct 2026π§ AI
Profile-Driven User Simulation via Reinforcement Learning with Hierarchical Rewards for Task-Oriented DialoguesProfileSim is a profile-driven user simulator for financial marketing outbound calls. It models user profiles (demographics, Big Five traits) and business profiles (intents reverse-engineered from real call logs). The base model is fine-tuned on real voice dialogues, then refined with GRPO using dialogue-level and utterance-level rewards. Against other user generators it scores highest on colloquial naturalness and profile adherence, and lowest agent score on long-tail intents, with shorter utterances at comparable business compliance.
arxiv.orgpaperAdded 26 Oct 2026, published 23 Oct 2026π§ AI
When to Stop Penalizing Actions? Martingale GRPO for VLA Reinforcement LearningMART-GRPO is a variant of group-relative policy optimization for vision-language-action (VLA) reinforcement learning. It uses a LoRA-fine-tuned VLM to find the last visible error without recovery in a failed rollout video, keeps failure feedback up to that point, and drops it afterward. Martingale stopping conditions show this preserves the expected GRPO gradient and can reduce covariance. With OpenVLA-OFT on RoboTwin 2.0, it raises success rates over full-trajectory GRPO across multiple tasks.
arxiv.orgpaperAdded 26 Oct 2026, published 23 Oct 2026π§ AI
4DMemory: Benchmarking Long-Horizon Spatiotemporal Memory with Harness-Augmented Agents4DMemory is a benchmark suite for long-horizon spatiotemporal memory: the LongVideo dataset (about 900 hours of video, over 5,000 manually reviewed questions) and 4DMemoryBench. It also presents the 4DMemory Harness, combining four skills, 22+ tool models and a model-specific RAG system. Across 13 models, the harness improved every one by over 50%, and the same models scored over 10% lower than on a previous benchmark.
arxiv.orgpaperAdded 26 Oct 2026, published 23 Oct 2026π§ AI
MAST-VLA: Skill-Conditioned Adaptation with Trajectory-Affordance Priors for Multi-Skill Robot ManipulationMAST-VLA is a vision-language-action framework for multi-skill robot manipulation that conditions on both the skill to execute and where and how to contact objects. It adds skill-conditioned LoRA Mixture-of-Experts adapters to the LLM backbone and turns a predicted affordance heatmap into a patch-level spatial prior for the action head. It reaches an Avg. Len of 4.65 on CALVIN ABCβD and was tested on a real robot.
arxiv.orgpaperAdded 26 Oct 2026, published 23 Oct 2026π§ AI
BiLoCo: Binary Low-Rank Corrections for Post-Training QuantizationBiLoCo is a post-training quantization method for FP4 LLMs that adds low-rank corrections whose left and right factors are stored as binary Β±1 sign vectors instead of BF16. This uses 16x less storage per rank-one component and lets the correction run on CUDA cores alongside the FP4 tensor-core GEMM. On 4B to 72B LLMs it matches or improves memory-matched SVDQuant. A fused B300 kernel is at most 11% slower than FP4-only GEMM at batch size 1 for ranks up to 512.
arxiv.orgpaperAdded 26 Oct 2026, published 23 Oct 2026π§ AI
MPQ: A Message-Passing View of Post-Training QuantizationMPQ (Message-Passing Quantization) is a post-training quantization method that treats row-wise PTQ as posterior inference over discrete codebooks. It keeps soft posteriors across weight blocks using vector approximate message passing, then refines a hard-decision initialization with exact block coordinate descent. Tested at 2-bit lattice and 3- and 4-bit scalar quantization on Llama, Qwen and Mistral models, it improves perplexity and zero-shot accuracy over GPTQ-style baselines.
arxiv.orgpaperAdded 26 Oct 2026, published 23 Oct 2026π§ AI
Pairwise Independence of Ten-Round AESPairwise Independence of Ten-Round AES (Zhongfeng Niu, Kai Hu, ePrint 2026/2608) proves that ten rounds of AES with independent uniform round keys and input/output whitening are within 3017/2^141 (below 2^-129) statistical distance of pairwise independent. The proof bounds the averaged difference-distribution matrix over five superbox layers, using Gram moments and MDS code constraints. Final-round MixColumns omission is retained.
eprint.iacr.orgpaperAdded 24 Oct 2026, published 23 Oct 2026π‘οΈ Security
How Much Do You Trust A Dog? Quantifying Hint-Following in Reasoning Language ModelsThis paper measures how hints such as "[Source] thinks the answer is (X)" shift LLM answers on MMLU questions, varying the source between a professor, a friend and a dog across Qwen, Gemma and SmolLM models. The shift fits an exponential tilt: a roughly constant mean change in the hinted answer's log-odds, with susceptibility largely shared across sources. The shift persists when the source is declared inaccurate or the prompt warns against trusting it. Synthetic experiments show how KL-regularized reward training could produce this pattern.
arxiv.orgpaperAdded 26 Oct 2026, published 23 Oct 2026π§ AI
Cache Engineering for Agents (AKV)AKV introduces cache engineering, which lets LLM agents control their active KV cache with drop (exclude cache from future attention) and repos (adjust retained keys' position encodings) without editing the trajectory or re-prefilling. The AKV serving engine keeps a stateless API while managing stateful cache reuse, eviction and restoration. A tool-response rolling-drop policy raised benchmark scores by 1.7 points and cut cost 27.7% versus threshold-triggered summarization.
huggingface.copaperAdded 23 Oct 2026π§ AI
Agentic AI Defense: Decode-Time Provenance Binding for MCPDecode-time provenance binding is a defense for Model Context Protocol agent pipelines against cross-modal trust laundering, where instructions hidden in an email-signature image via LSB, DCT or metadata steganography get decoded by a tool. It combines HMAC-authenticated trust labels, a provenance ledger and context-taint tracking to block critical tool calls. On a real MCP testbed with 24 adaptive payloads, attack success fell from 100% undefended (62.5% for keyword and regex filters) to 0%.
arxiv.orgpaperAdded 26 Oct 2026, published 22 Oct 2026π‘οΈ Security
Reproducible Evaluation as the Substrate for Safe Prompt Compression in Production AgentsThis paper presents an offline evaluation harness for a production merchant-facing conversational agent. It stays reproducible when live backend data changes and can be regenerated when it goes stale. Used as the fitness function for GEPA prompt optimization under a correctness gate against reward hacking, it shrinks the full prompt surface by 3.5-7.6% without losing held-out correctness, across three subject-model families.
arxiv.orgpaperAdded 26 Oct 2026, published 22 Oct 2026π§ AI
EpiSEM-Bench: Evaluating Safety and Evidence Recovery in LLM Agents under Missing EvidenceEpiSEM-Bench is an executable benchmark of 300 matched unsafe/safe task pairs across six domains. It tests whether tool-using LLM agents take prohibited actions when a tool response omits a safety-relevant fact, even though the request is benign and all returned statements are true. It finds large variation across ten models, and recovery access cuts unsafe execution for all ten.
arxiv.orgpaperAdded 24 Oct 2026, published 22 Oct 2026π§ AI
Causal Chain of Thought: Mitigating Attention Leakage via Context IsolationCausalCoT is an inference framework that splits a problem into a directed acyclic graph of atomic sub-questions and evaluates each node in an isolated context holding only its direct causal parents. This removes attention paths to non-parent content, so intermediate steps drive the answer rather than leaking from global context. It keeps benchmark accuracy competitive and raises causal sensitivity of reasoning steps by 12 points on average, up to 21, over the strongest baseline. The graph also allows test-time corrections that propagate downstream.
arxiv.orgpaperAdded 24 Oct 2026, published 22 Oct 2026π§ AI
BeNice! Closing Looping's Inference-Memory Gap via KV-SharingBeNice! is a post-training method for looped language models that broadcasts the final recurrence's KV-cache into the first recurrence, so one cache can serve all recurrences. It follows a first stage that uses stochastic depth in pretraining to induce contractive residual dynamics. It matches standard finetuning's unshared validation perplexity and composes with multi-latent attention, Kimi delta attention and fp8, mxfp8 and nvfp4 cache quantization. In simulated low-memory long-context inference it raises cache hit rates by up to 31.4% and throughput by up to 23.6%, and cuts p90 time-to-first-token by up to 83.6%.
arxiv.orgpaperAdded 24 Oct 2026, published 22 Oct 2026π§ AI
F2G-Pose: Geometry-Aware Foundation Feature Lifting for Direct RGB-D Category-Level Object Pose EstimationF2G-Pose is a direct, single-pass framework that predicts category-level object pose, metric size and camera-frame completed shape from one RGB-D image. It lifts frozen RADIO foundation features onto partial point clouds, tokenizes local geometry with DGCNN, and fuses it with a Mixture-of-Experts Transformer. It trains only on synthetic SOPE data, leads on SOPE and ROPE at 28 FPS, and is tested on HouseCat6D, HANDAL and real manipulation.
arxiv.orgpaperAdded 24 Oct 2026, published 22 Oct 2026π§ AI
Progress Probes $P^2$: Lightweight Runtime Monitoring for Vision-Language-Action ModelsProgress Probes (P^2) trains linear probes on a vision-language-action model's own activations, using demonstrations, to estimate task progress, then flags executions that deviate from expected progress. Tested on the open-source pi0.5 across simulated and real-world manipulation tasks, it matches or beats VLM-based monitors and failure-data-trained methods at failure detection, without an external foundation model.
arxiv.orgpaperAdded 24 Oct 2026, published 22 Oct 2026π§ AI
How Ground Truth Shapes Retrieval Scores: Evidence-Aware Evaluation of a Retrieval-Augmented Generation System for Breast LesionsThis paper describes an evidence-aware retrieval evaluation protocol for a clinical RAG system over breast lesion management literature. Relevance is defined by evidence spans mapped to all containing chunks. A hybrid retriever (dense, BM25, cross-encoder reranking) with 384-token chunks and 20% overlap reached 0.94 Recall@3 on 18 queries. Expanding ground truth from 25 to 37 spans did not change rankings. The authors note the small set needs independent validation.
arxiv.orgpaperAdded 24 Oct 2026, published 22 Oct 2026π§ AI
CellTrack-Bench: Microscopic Cell Tracking Benchmark for Vision-Language ModelsCellTrack-Bench is a benchmark that tests vision-language models on microscopic cell tracking and compares them with specialised trackers. It has 1,537 problems covering 9,041 cell-linking decisions, drawn from 15 cell-tracking datasets across four imaging modalities, with a hard subset built from failures shared by distinct algorithmic trackers. The authors compare environment harnesses, benchmark 9 closed-source and 13 open-weight models, and analyse failure modes.
arxiv.orgpaperAdded 24 Oct 2026, published 22 Oct 2026π§ AI
An Empirical Study of Recent Large Language Models for Knowledge Graph to Text Generation on Standard BenchmarksThis empirical study benchmarks recent LLMs against fine-tuned encoder-decoder models on knowledge graph-to-text generation, using reference-based metrics and graph-grounded, reference-free LLM-based evaluation validated against human annotations. Recent LLMs narrow or close the gap on reference-based metrics and do better on graph-grounded ones. Prompted models make fewer contradictions and triple omissions, and fine-tuned models' errors grow faster with graph size.
arxiv.orgpaperAdded 24 Oct 2026, published 22 Oct 2026π§ AI
The Geometry of Metaphor: Probing and Steering Metaphor Representations in Large Language ModelsThe Geometry of Metaphor is an October 2026 arXiv preprint that uses mechanistic interpretability to find causal subspaces for metaphor in LLMs of different architectures and sizes. The authors steer output on classification tasks across parts of speech. They also steer generation tasks, showing the metaphoricity of model output can be controlled. The abstract gives no model names or metrics.
arxiv.orgpaperAdded 24 Oct 2026, published 22 Oct 2026π§ AI
DuoCook: An Overcooked-Inspired Benchmark for Visual Planning and CoordinationDuoCook is an Overcooked-inspired benchmark in which one vision-language model controls two cooks from top-down views in Unreal Engine environments built with coding agents. It has 20 maps in five categories covering equipment contention, changing terrain and handoff dependencies. Four VLMs were compared; the best, gpt-6-astra, reached 26.2% mean order completion. A notebook memory ablation had mixed effects: positive for Claude and Qwen, negative for GPT and Gemini.
arxiv.orgpaperAdded 24 Oct 2026, published 22 Oct 2026π§ AI
Training Small Language Models for Transferable Tool SelectionThis paper trains small open language models with reinforcement learning to select tools for multi-step instructions over corpora of more than ten thousand tools. A Qwen3-8B model post-trained with the recipe outperforms Llama-4-Maverick (402B) on ToolBench. The trained model transfers to different retrievers and generalizes to new tool corpora in other domains, without relying on proprietary LLMs like Claude or ChatGPT.
arxiv.orgpaperAdded 24 Oct 2026, published 22 Oct 2026π§ AI
Linear Cryptanalysis of TFHE-Friendly Cipher FRAST in the Average Key SettingLinear cryptanalysis of FRAST, a TFHE-friendly stream cipher, in the average key setting. It fixes the false-positive problem left open in the earlier attack by Bak et al., showing key differences fall into five indistinguishable classes per round. The Contract algorithm recovers the master key for 10 rounds and, on weak keys of density 2^-11.8 to 2^-5.4, reaches full FRAST within the claimed security.
eprint.iacr.orgpaperAdded 24 Oct 2026, published 22 Oct 2026π‘οΈ Security
SARIA: Persistence-Aware KV Caching with Coordinated DRAM--SSD Reload for LLM AgentsSARIA (Selective Admission and Reload for Inference Acceleration) is a KV caching system that jointly manages DRAM and SSD for multi-turn LLM agents. It persists only blocks likely to be reused beyond DRAM residency, promotes SSD-hit blocks into DRAM for same-session reuse, and paces DRAM reads with a transfer coordinator. Built on LMCache MP, it cuts SSD writes by 57.1 to 58.9% versus full duplicate caching and mean TTFT by 42.3 to 79.7% versus DRAM-only caching.
arxiv.orgpaperAdded 23 Oct 2026, published 22 Oct 2026π§ AI
SecLog-Bench: A Scalable Benchmark for Cybersecurity Log Reasoning with Scaffolded EvidenceSecLog-Bench is a benchmark for LLM reasoning over cybersecurity logs, built on an extensible simulation platform covering 29 attack scenarios. It combines audit logs, application logs and network traffic, with attack-stage labels and step-by-step evidence chains. Eight LLMs were tested on post-detection attack-progress reasoning: the best reached 44.44% accuracy, 45.07% Macro-F1 and 54.87% Stage Reasoning F1.
arxiv.orgpaperAdded 23 Oct 2026, published 22 Oct 2026π‘οΈ Security
SecLog-Bench: A Scalable Benchmark for Cybersecurity Log Reasoning with Scaffolded EvidenceSecLog-Bench is a benchmark for LLM reasoning over cybersecurity logs. A simulation platform with 29 attack scenarios generates audit logs, application logs and network traffic, with attack-stage labels and step-by-step evidence chains. Eight mainstream LLMs were tested on attack-progress reasoning: the best reached 44.44% accuracy, 45.07% Macro-F1 and 54.87% Stage Reasoning F1. Correct predictions often came with flawed reasoning.
arxiv.orgpaperAdded 23 Oct 2026, published 22 Oct 2026π§ AI
TRIAD: Benchmarking Omni-Modal Ambiguity in Multimodal Large Language ModelsTRIAD is a benchmark for omni-modal ambiguity resolution. It has 327 hand-written text-image-audio queries in 86 scene groups across 18 ambiguity categories, and removing any one modality makes the answer non-unique. Across 14 omni-modal systems, the best model trails humans by over 20 points in group accuracy. Without answer options, model group accuracy falls to single digits, and leave-one-out tests show audio cues are often underused.
arxiv.orgpaperAdded 23 Oct 2026, published 22 Oct 2026π§ AI
Gandalf: Flash Shall Not Die! Increasing Flash Storage Lifetime for KV Cache Offloading in LLM ServingGandalf is an SSD KV cache offloading system for LLM serving that is aware of SSD lifetime. It prioritizes admitting full-attention KV cache to SSD over cache from other attention types, using application-level information rather than access history alone. The authors report a 7.3x average SSD lifetime extension with negligible cache hit rate loss across several workload traces and hardware capacities. The design may extend to High Bandwidth Flash.
arxiv.orgpaperAdded 23 Oct 2026, published 22 Oct 2026π§ AI
Disentangling Robustness and Sycophancy in Multilingual LLMsThe SC-matrix is an evaluation framework for multilingual LLM sycophancy. It crosses a model's competence (correct answer with no pressure) with its sycophancy (keeping that answer under pressure), so agreeing with a false premise can be told apart from not knowing the answer in that language. Results: equal aggregate sycophancy rates hide different failure mixes, high competence does not always protect, and reasoning-oriented mitigations beat directive ones.
arxiv.orgpaperAdded 24 Oct 2026, published 22 Oct 2026π§ AI
Matrix-Game 4.0: Harnessing Video Models for Real-Time Playable Game WorldsMatrix-Game 4.0 is a system that separates game logic from visual rendering for playable generated worlds. A lightweight engine holds world state and rules, a multimodal coding agent writes game code and scene captions, and a distilled autoregressive video model turns low-poly proxies into detailed frames. It runs 480p at 60 FPS on one RTX 5090 with 112 ms key-press-to-display latency. Code, weights and assets are released.
huggingface.copaperAdded 22 Oct 2026π§ AI
IFC-MCQ: Automatically Generating Multiple-Choice Benchmarks for Evaluating LLM Agents on IFC Data RetrievalIFC-MCQ is a method that automatically generates multiple-choice benchmarks from Industry Foundation Classes (IFC) building-model files, so answers can be graded by exact option-set match instead of human or LLM review. Its taxonomy has 15 categories and 36 subtypes in four groups, with answer keys from the file and distractors from file values or rules. Two agentic setups, tool-based and code-based retrieval, showed category-specific failures and variation by IFC model and interface.
arxiv.orgpaperAdded 23 Oct 2026, published 21 Oct 2026π§ AI
SIM-UT: A User Simulation based Evaluation Framework for Medical Triage ChatbotsSIM-UT (Simulation of User Behaviour for Triage) is a multi-turn, simulation-based method for finding failure modes in LLM medical triage chatbots. It was applied to three WhatsApp health chatbots (India, South Africa, Kenya) across 5,000+ multilingual simulated turns, comparing MedGemma with ChatGPT and Claude. The main finding is de-escalation risk: agents that first flagged emergencies agreed with users who minimised symptoms, such as vaginal bleeding in pregnancy.
arxiv.orgpaperAdded 24 Oct 2026, published 21 Oct 2026π§ AI
Sotto Maschera: Masking the Sota-Voce Fixed-Weight Vector SamplingSotto Maschera is a masked implementation of the Sota Voce sparse fixed-weight vector sampler (Sota support sampler and MWSupport conversion) for embedded devices, protecting against power side-channel attacks. It bitslices sorting, merging and compaction and masks only in the Boolean domain, avoiding slow conversions. TVLA evaluations show no leakage, and HQC runs up to 45x faster than previous masked work.
eprint.iacr.orgpaperAdded 24 Oct 2026, published 21 Oct 2026π‘οΈ Security
RingTrace: Model-Free Spatio-Temporal Detection and Core Attribution for Cache Side-ChannelsRingTrace is a monitoring framework that detects Flush+Reload cache side-channel attacks by combining per-core cache-miss counters with slice activity across uncore CBoxes. Its Joint Spatio-Temporal Attribution (JSTA) builds a joint-activity matrix without model training: the largest entry is the screening score and row sums point to a candidate core. The authors report detection before secret leakage, fewer false alarms under heavy memory load, and negligible runtime overhead on commodity processors.
eprint.iacr.orgpaperAdded 24 Oct 2026, published 21 Oct 2026π‘οΈ Security
MPIDetector: Detecting Multi-modal Prompt Injection via LLM-based ReasoningMPIDetector is a detection framework for multi-modal prompt injection that uses few-shot in-context learning so an LLM can reason about the semantic intent of text and image inputs, without fine-tuning. The authors built a benchmark of eight textual and seven visual attack categories plus benign sets. They report up to 90.91% accuracy on text, 99.28% on images, and up to 99.80% detection on 500 obfuscated WebInject web-agent injections, beating baselines.
arxiv.orgpaperAdded 24 Oct 2026, published 21 Oct 2026π‘οΈ Security
Where AI Vulnerability Discovery Harnesses Go Quiet: Structural False Negatives and Hidden VulnerabilitiesPaper (arXiv, 21 October 2026) on structural false negatives in LLM vulnerability discovery harnesses. Starting from Knostic's OpenAnt and raptor, then 10 more open-source harnesses, the authors map 13 points where code selection, filtering, and finding storage or merging drop vulnerabilities. One file was dropped by six harnesses before the model saw it, five without notice. It covers attacker evasion, content-steered verdicts, prompt injection, and design principles and tests.
arxiv.orgpaperAdded 24 Oct 2026, published 21 Oct 2026π‘οΈ Security
DISCO*: DIstributed and SCalable Oblivious Joins and Oblivious PrimitivesDISCO is a distributed, fully oblivious database system that combines hardware enclaves (TEEs) with oblivious primitives to hide access patterns from side-channel and leakage-abuse attacks. New distributed frameworks and communication optimizations let it run in parallel across servers. It reports 88x speedup over Jodes and 180x over SODA on non-foreign-key joins with 2^25 elements, and the first terabyte-scale results.
eprint.iacr.orgpaperAdded 21 Oct 2026, published 20 Oct 2026π‘οΈ Security
Sign Here: Attributing a Source for a More Trustworthy Software Supply ChainSign Here is an arXiv paper (October 2026) testing whether building packages from source, instead of pulling from registries, prevents malware. It aggregates 47,066 malicious npm and PyPI packages from five datasets and indexes 3.9 million npm and 764 thousand PyPI packages. Checking for an attributed source blocks 87.7 to 99.9 percent of malware depending on vetting level, but only 47.4 percent of benign packages attribute a buildable source.
arxiv.orgpaperAdded 24 Oct 2026, published 20 Oct 2026π‘οΈ Security
UniWALM: Unified World Action Language Model for Embodied Robot ControlUniWALM is a unified world-action-language model that learns video, action and language in one mixture-of-transformers backbone with per-modality diffusion heads that co-denoise together. Generated subtask and textual memory are fed back on the next step, so no external planner or memory bank is needed. It adds Flow Matching with Correction (FMC) for recovery from perturbed actions. It reaches 34.5% on the memory-dependent RMBench subset, above Mem-0's 28.5%, and lifts real-world Find-the-Item success from 11.1% to 61.1%.
arxiv.orgpaperAdded 22 Oct 2026, published 20 Oct 2026π§ AI
InterWebCoder: Learning Interactive Webpage Generation from Executable Tests via Reinforcement LearningInterWebCoder is a framework for interactive webpage code generation by multimodal LLMs. It synthesizes self-contained webpages with executable test scripts from recorded interaction trajectories, repairs failures using runtime evidence, then trains with test-ID-weighted SFT and GRPO using test pass rates and visual similarity as rewards. The pipeline yields 1,736 verified samples from 2,058 tasks. A 9B model scores 48.54 on IWR-Bench and 48.42 on Vision2Web, and reward latency drops over 97%.
arxiv.orgpaperAdded 22 Oct 2026, published 20 Oct 2026π§ AI
AgenticRoboRL: Bringing Coding-Agent Post-Training to Agentic RoboticsAgenticRoboRL is a framework for post-training robot planners across different harnesses, combining supervised fine-tuning with multi-turn reinforcement learning. Harness-specific adapters link recorded planner interactions to task outcomes, so one RL pipeline covers both VLA skill invocation and control-code generation. On LIBERO-PRO, a 9B planner rose from 18.1% to 71.0% without external memory, near Codex (GPT-5.5) with memory at 72.1%. Code and checkpoints are promised.
arxiv.orgpaperAdded 22 Oct 2026, published 20 Oct 2026π§ AI
Sage-A1.5: From Long-Horizon Execution to Scientific Exploration with Capability CompositionSage-A1.5 is a 35B Mixture-of-Experts agentic model that builds on Sage-A1 for long-horizon problem solving. It adds three capabilities: orchestration with parallel subagents in isolated contexts, verification through progress checking, evidence validation and strategy revision, and open scientific discovery with inspectable research artifacts. The report shows them on complex agentic tasks and multidisciplinary science applications. The page gives only the abstract, no benchmark numbers.
arxiv.orgpaperAdded 22 Oct 2026, published 20 Oct 2026π§ AI
Cache Engineering for AgentsCache Engineering for Agents proposes letting LLM agents control their active KV cache directly, using a drop operation to exclude cache from attention and repos to adjust retained keys' position encodings, without editing the trajectory or re-prefilling. The authors build the AKV serving engine to handle history-dependent cache states. A tool-response rolling-drop policy raises average benchmark scores by 1.7 points and cuts cost by 27.7% against threshold-triggered summarization. AKV gives up to 1.2x output throughput and 1.5x faster P95 latency.
arxiv.orgpaperAdded 22 Oct 2026, published 20 Oct 2026π§ AI
A Spectral Theory of Local-to-Global LeakageA Spectral Theory of Local-to-Global Leakage is an IACR ePrint paper (2026/2571) by Rei Ueno on additive secret sharing over finite abelian groups. It gives an exact leakage decomposition into local leakage magnitude and spectral alignment across shares. Two channels with identical local mutual information can have exponentially different global leakage. Automorphism-weighted sharing can cancel leakage perfectly with finitely many shares, which ordinary additive sharing cannot do.
eprint.iacr.orgpaperAdded 21 Oct 2026, published 20 Oct 2026π‘οΈ Security
OptScientist: Automated Discovery of Optimization LawsOptScientist is a framework that discovers compact symbolic optimization laws from data. It pairs a model that infers symbolic optimization problems with an LLM agentic system that uses literature priors, proposes candidate laws, abstracts mechanisms and suggests new data to collect. On OptFeynman, a new benchmark of 99 physics-derived problems, it recovers ground-truth laws for over 80%. It is also tested on human risky choice and central-bank monetary policy.
arxiv.orgpaperAdded 22 Oct 2026, published 20 Oct 2026π§ AI
Agentic Ensemble with Vision-Language Models for Visual Anomaly DetectionAnomalyAgent is a post-training fusion framework for visual anomaly detection that ensembles pretrained detectors. It aligns scores and anomaly maps, summarizes disagreement, and treats fusion as a choice among score actions and map actions. A constrained vision-language model inspects high-conflict samples and picks the actions. It beats equal-weight fusion and gets the best mean image AUROC and pixel AP among compared fusion methods on MVTec AD and VisA.
arxiv.orgpaperAdded 22 Oct 2026, published 20 Oct 2026π§ AI
Large Flow Language ModelsLafa (Large flow language model) is a blockwise continuous flow language model scaled to 8B parameters, with causal attention on the prefix and bidirectional, asynchronous flow within each block. It is adapted from pretrained autoregressive models and trained at 0.5B, 7B and 8B with under 30B tokens. A self-speculative decoding scheme verifies flow drafts autoregressively in one model, giving 2.54x the throughput of an AR model at comparable quality. Flow maps allow one- and few-step generation.
arxiv.orgpaperAdded 22 Oct 2026, published 20 Oct 2026π§ AI
Answering in the User's Variety: Calibrated Accommodation Pairs for Post-TrainingCalibrated accommodation pairs (CAP) is a preference-data method that rewards chat models for matching a user's dialect density while keeping Standard English for Standard-English users. The paper traces SFT, DPO and RL stages across 10 open model lineages and finds post-training standardizes replies, while the DPO update still favours British and Australian spelling over AAE and Singlish. On a fully open model, CAP improves convergence on unseen features without added dialect for Standard-English users or lower instruction following.
arxiv.orgpaperAdded 22 Oct 2026, published 20 Oct 2026π§ AI
Membership Inference in Privacy-Preserving Vector SearchMembership Inference in Privacy-Preserving Vector Search is an IACR ePrint paper (2026/2570) that attacks backend-compatible protections for embedding databases using one snapshot and known plaintexts. It breaks the Scale-and-Perturb scheme of Fuchsbauer et al. (advantage 0.997 on MS-MARCO) and analyzes Rotate-and-Perturb, ideal DCRE and an encrypted HNSW index. It also tests shuffling and secret projection as mitigations.
eprint.iacr.orgpaperAdded 21 Oct 2026, published 20 Oct 2026π‘οΈ Security
After the Attacker Leaves: Benchmarking Carryover Attacks on LLM AgentsCarryoverBench is a benchmark of 12 personal-assistant scenarios and 101 attack tasks for carryover attacks, where a one-time indirect prompt injection planted in agent memory files or scheduled tasks re-fires in later sessions. Three trigger channels (Instant, Autonomous, Latent) are scored by a rule-based verifier with separate planting and triggering stages. Across five frontier models, payloads re-fire over five rounds without measurable decay. Porting the Latent channel to the Hermes runtime weakens the effect but does not remove it.
arxiv.orgpaperAdded 22 Oct 2026, published 20 Oct 2026π‘οΈ Security
Code2Video-Compass: A Comprehensive Benchmark for General-Purpose Code-Based Video Generation across T2V, I2V, and V2VCode2Video-Compass is a benchmark of 2,104 tasks for code-based video generation, where multimodal LLMs write executable programs that produce complete videos from text (T2V), image (I2V) or video (V2V) inputs. Tasks span 10 categories and 24 subtypes. Scoring uses 12 objective metrics and five MLLM-judge metrics. Across 15 proprietary and open-weight models from nine families, performance falls as construction, dynamic animation and state-dependency complexity rise.
arxiv.orgpaperAdded 22 Oct 2026, published 20 Oct 2026π§ AI
DIVE: Benchmarking Full-Duplex Interaction with Visual Engagement in Continuous StreamsDIVE is a benchmark for full-duplex interaction with visual engagement in continuous audio/video streams. It has 525 human-annotated samples across six tasks in three scenarios: proactive intervention, continuous engagement and interaction coordination. Evaluated real-time models reach sub-second average latency, but window response rates stay at or below 53.77%, and adapting ongoing responses to new information is hardest.
arxiv.orgpaperAdded 22 Oct 2026, published 20 Oct 2026π§ AI
Context-Aware Prompt Injection Detection via Small Language Models in RAG Pipelines: nokast-secureRAGnokast-secureRAG is a roughly 0.5B-parameter small language model that works as a semantic firewall between retrieval and generation in local RAG systems. It classifies each query and context pair as safe, suspicious or malicious. It reaches 0.994 recall at a 0.026 false-positive rate in-distribution, beating Llama Guard 3 1B and Prompt-Guard-86M (0.900 recall, 0.690 FPR). Recall on PoisonedRAG falls to near zero, and single-request latency is 293-404 ms.
arxiv.orgpaperAdded 22 Oct 2026, published 20 Oct 2026π‘οΈ Security
Reward Misspecification Degrades Chain-of-Thought MonitorabilityThis paper shows that reward misspecification alone degrades chain-of-thought (CoT) monitorability in language models. Using a testbed of paired true and misspecified rewards across three models and three tasks, CoTs keep reasoning about task intent while outputs hack the reward. The proposed reward description training injects an LM-inferred reward description into the input and raises monitorability by an average of 24% or 42% absolute, depending on the metric.
arxiv.orgpaperAdded 22 Oct 2026, published 20 Oct 2026π§ AI
A Multimodal Engineering GraphRAG Framework for Post-Wind-Event Building Assessment and Recovery InferenceThis paper presents a multimodal engineering GraphRAG framework that links post-wind-event damage evidence from images and reconnaissance reports to building-condition states, recovery actions and downtime. Evidence is stored as a provenance-preserving, component-level representation, and graph-aligned retrieval uses compatibility, contradiction, evidence-precedence and abstention checks. Demonstrated on tornado-affected low-rise homes, it beats BaselineRAG and Structured Baseline RAG, and ablations test each component.
arxiv.orgpaperAdded 22 Oct 2026, published 20 Oct 2026π§ AI
Raise or Check? Predicting the Necessity of Additional Fuzzing for Continuous FuzzingRAISE (Risk-Aware Intensive Supplemental Execution Framework) is a just-in-time framework that predicts which project-days introduce a vulnerability, to decide where to spend extra fuzzing. The dataset joins OSV vulnerability-introducing commits with OSS-Fuzz coverage data for 15 C/C++ projects (15,210 project-days, 347 positive). A Random Forest using VCCFinder static features plus fuzzing features reaches ROC-AUC 0.74. In a simulation over 968 vulnerabilities, Simple-Regression needed 91.60 extra fuzzing sessions per detected vulnerability, against 171.89 for the Median heuristic.
arxiv.orgpaperAdded 22 Oct 2026, published 20 Oct 2026π‘οΈ Security
KNOX: Hardware-assisted Regulatory Sandbox for Generative ModelsKNOX is a regulatory sandbox for generative models that runs AI workloads inside trusted execution environments (TEEs). For agentic workloads, it derives an attested policy manifest from the user prompt (applicable regulations, expected tool calls, permitted system calls). An attested reference monitor checks each action against it, and an attested execution graph records every action and verdict. Overhead is under 1%.
arxiv.orgpaperAdded 22 Oct 2026, published 20 Oct 2026π§ AI
KNOX: Hardware-assisted Regulatory Sandbox for Generative ModelsKNOX is a regulatory sandbox for generative models built by running AI agent workloads inside TEEs. It derives an attested policy manifest (applicable regulations, expected tool calls, permitted system calls) from the user prompt, and an attested reference monitor allows an action only if it matches. Actions and verdicts go into an attested execution graph that regulators can verify. The paper reports detection of prompt-injection deviations and under 1% overhead.
arxiv.orgpaperAdded 22 Oct 2026, published 20 Oct 2026π‘οΈ Security
Into the Unknown: Benchmarking AI agents on open scientific research problemsInto the Unknown is a benchmark that gives an AI agent a science paper and an unpublished research direction, then asks it to write a follow-up paper. Scientists at US Department of Energy national laboratories supplied the directions and the conditions a submission must meet, which form the grading rubric. Nine frontier agents wrote 15 follow-ups each (135 total) across five domains. None met all conditions, and 114 failed an integrity check, mostly for claiming work never done or reporting numbers that contradict recorded evidence.
huggingface.copaperAdded 20 Oct 2026π§ AI
Can It Actually Work? Synthesizing Functional CAD MechanismsFunCAD-Harness is a framework in which LLM agents design CAD mechanisms and revise them using physical simulation feedback. It turns abstract functional requirements into candidate-specific physical tests. The paper also introduces FunCADBench, a benchmark of 46 mechanism families with interdependent, multi-step operations. Experiments on frontier LLM agents show it exposes mechanical failures that visual inspection misses and raises functional success over standard simulation-augmented baselines.
arxiv.orgpaperAdded 21 Oct 2026, published 19 Oct 2026π§ AI
OpenVLHarness: Real World Visual Agentic Tool-Use with Multimodal MemoryOpenVLHarness is a multimodal reasoning harness for MLLMs built on a capability layer (task-level tool interfaces plus evidence rendering) and persistent multimodal memory that stores images, structured data and web references as addressable artifacts. A coding interface runs generated programs over stored data. Across 22 benchmarks and eight backbones it adds 9.7-12.6 points over no-tool baselines, and GPT-6 Luna at medium effort beats Codex and Visual Sketchpad at maximum effort using at most 37% of their tokens.
arxiv.orgpaperAdded 21 Oct 2026, published 19 Oct 2026π§ AI
Same Simulation, Different Evidence: Where Retrieved Tool Output Costs LLM Agents AccuracyThis paper studies how keeping long tool output out of the context window, and reading it through a section index instead, costs LLM agents accuracy. Using the PHREEQC geochemistry simulator on 158 execution-verified multiple-choice items and 11,007 logged calls, GPT-5.1 and GPT-5.2 lose 11.3 and 7.9 points, while Claude Opus 4.6 and Sonnet 4.6 show no detectable cost. The authors name the failure evidence substitution: agents skip the report and misround from their own output files.
arxiv.orgpaperAdded 21 Oct 2026, published 19 Oct 2026π§ AI
MemT-1.0: Towards Memory-Native EvolutionMemT-1.0 is a memory foundation model architecture that builds memory into model computation. It builds on Metis, uses Gated DeltaNet-2 for token-level memory updates within each turn, and adds Mixture-of-Storage to scale capacity. Training used 34B tokens in continued pre-training and post-training. MemT-1.0-Nano and MemT-1.0-Flash beat parametric memory baselines and stay competitive with retrieval methods. At 128K history, Nano gives about 1.86x inference speedup and 66x less persistent storage than a full-context KV cache.
arxiv.orgpaperAdded 21 Oct 2026, published 19 Oct 2026π§ AI
ASTOR: Benchmarking and Improving Autoformulation for Soft-Constraint Optimization with a Formal GrammarASTOR is an inference-time framework that has an LLM map a natural-language decision problem to a grammar-guided abstract syntax tree, then deterministically compiles it into executable optimization code. The paper also introduces SoftOR, a benchmark of natural-language problems with soft constraints. On SoftOR, ASTOR has the best aggregate accuracy among comparable single-request and multi-agent LLM methods, and it stays competitive on hard-constraint-only autoformulation benchmarks.
arxiv.orgpaperAdded 21 Oct 2026, published 19 Oct 2026π§ AI
What Language Adds, and at What Cost: Four Controlled Probes of Pathology Vision-Language ModelsThis preprint grades evidence for pathology vision-language models and tests four claims with controlled probes on released checkpoints and public data. Stage-redacted report embeddings raise pooled C-index by 0.019 (progression-free interval) and 0.016 (overall survival) across 1,633 TCGA patients. Zero-shot prompting matches a linear probe. SlideChat scores 74.82% with the slide and 74.41% without it. Paraphrasing flips 8-23% of answers.
arxiv.orgpaperAdded 21 Oct 2026, published 19 Oct 2026π§ AI
Mise-en-Video: Fine-Grained 3D Control for Multi-Shot Video GenerationMise-en-Video (MeV) is a multi-shot video generation framework where creators stage shots in 3D space and then generate the matching video. It combines hierarchical attention for multi-level narrative consistency with 3D-aware layout guidance for per-shot spatial control. The authors built a 160K-video dataset with hierarchical multi-shot texts and oriented 3D bounding boxes, and report gains over baselines in quality, consistency and subject controllability.
arxiv.orgpaperAdded 21 Oct 2026, published 19 Oct 2026π§ AI
EpiLens: Lightweight RAG for Epidemiological Knowledge AcquisitionEpiLens is a lightweight, open-source retrieval-augmented generation package that applies a fixed retrieval template and output schema to every paper in a corpus and links outputs to source passages. On a corpus of 2,297 epidemiology papers, its classifier matches or exceeds supervised and zero-shot baselines on four tasks without task-specific training data, scored against 214 manual labels. It also compares model-based study shares across parameters and pathogens.
arxiv.orgpaperAdded 21 Oct 2026, published 19 Oct 2026π§ AI
Which Model for Which Role? Cost-Efficient Pareto Recommendation for LLM Agentic WorkflowsCost-Coupled Gittins (CC-Gittins) is a multi-objective extension of cost-aware Gittins search that recommends Pareto-optimal model-to-role assignments for LLM agentic workflows. It exploits the coupling between evaluation and deployment cost, alternating between seeking higher quality and lower cost. On eight quality-cost matrices (two to five roles, up to 1,681 assignments), it recovers a substantial share of the true Pareto frontier at about 10% of exhaustive-evaluation cost, and most of it by 30%. Latency is tested as a third objective.
arxiv.orgpaperAdded 21 Oct 2026, published 19 Oct 2026π§ AI
Tandem: Serving Hybrid Linear-Attention GUI Agents on Mobile NPUsTandem is a runtime for serving hybrid linear-attention GUI agents on mobile NPUs. It saves recurrent state where consecutive prompts diverge, keeps most prefill on the matrix unit, uses a verification kernel that reads each weight block once, and releases NPU power votes between bursts. On a Snapdragon 8 Elite it cuts per-step latency 30% for text screen descriptions and 16% for screenshots, cuts energy per text step by 33%, and lowers loaded-model standby power from 0.76 to 0.22 W.
arxiv.orgpaperAdded 21 Oct 2026, published 19 Oct 2026π§ AI
The Development of Sycophancy in Language Models: Tracing Vulnerabilities from Pretraining to Post-TrainingThe paper traces sycophancy across 741 checkpoints from 30 open model lineages, from early pretraining to released models. It plants initial verdicts on moral scenarios and measures how far models follow a user's opinion or drop their answer under pressure. The behaviour usually exists before post-training, but which questions a released model yields on is set mainly during post-training. For TΓΌlu-3 8B, its own preference-stage checkpoint removes 85% of remaining prediction error, a sibling model only 19%.
arxiv.orgpaperAdded 21 Oct 2026, published 19 Oct 2026π§ AI
Concerns in Benchmarking Jailbreaks: An Empirical Study of Attack Success RatesThis arXiv paper tests eight jailbreak attacks against three open-weight language models under three evaluation procedures. Low-resource language attacks score 96.0% mean ASR under keyword matching but 2.7% under a Qwen3 judge using StrongREJECT instructions. At Ollama's default temperature of 0.8, 100 samples of an unchanged request give 100% ASR by keywords and 50% by the judge. The authors recommend explicit success definitions, matched response budgets, validated evaluators and cumulative-failure reporting.
arxiv.orgpaperAdded 21 Oct 2026, published 19 Oct 2026π‘οΈ Security
Concerns in Benchmarking Jailbreaks: An Empirical Study of Attack Success RatesConcerns in Benchmarking Jailbreaks is an October 2026 arXiv study of eight jailbreak attacks on three open-weight models under three evaluation procedures. Low-resource language attacks score 96.0% ASR by keyword matching but 2.7% under a Qwen3 evaluator using StrongREJECT instructions. Attack rankings flip with attempt budgets, and 100 samples at Ollama's default temperature 0.8 give 100% ASR by keywords, 50% by the evaluator.
arxiv.orgpaperAdded 21 Oct 2026, published 19 Oct 2026π§ AI
HAF-VLA: Hierarchical Action Flow Framework for Humanoid Vision-Language-Action ControlHAF-VLA is a hierarchical action-flow framework that adapts a pretrained flow-matching vision-language-action model to humanoid whole-body loco-manipulation. It denoises a shared action space in stages: locomotion and head commands first, then waist refinement, then full-body manipulation. Learnable stage embeddings and cross-stage KV-cache conditioning carry dependencies between stages. The authors report gains over existing models on six real-world tasks.
arxiv.orgpaperAdded 21 Oct 2026, published 19 Oct 2026π§ AI
Mitigating Reward Hacking in Preference Reward Models with Evolving PenaltiesDynalize is a method that reduces reward hacking during online RL training against preference reward models. Periodically and asynchronously, a language model reads training rollouts and writes penalties for undesirable behaviors the reward model seems to reward, and a judge applies them to every rollout. In clinical counseling and creative writing it sustains longer training and improves external benchmarks, and the gains hold in multi-turn training and after reward model retraining.
arxiv.orgpaperAdded 21 Oct 2026, published 19 Oct 2026π§ AI
Rethinking LLM Fine-Tuning via Weight Space Reparameterization: Preserving Safety during Downstream AdaptationWSR-Tune is a fine-tuning framework that reparameterizes LLM weight matrices with a safety-conditioned basis, so safety-relevant information concentrates in a small set of directions. Those safety-critical directions are frozen, and the remaining complementary directions are updated for the downstream task. The authors report a better trade-off between downstream performance and safety retention. The page gives no benchmark names or numbers.
arxiv.orgpaperAdded 21 Oct 2026, published 19 Oct 2026π§ AI
Fake News, Real Crashes: Information Injection Attacks on LLM Financial Trading AgentsFake News, Real Crashes is an October 2026 arXiv paper presenting a benchmark for information injection attacks on LLM financial trading agents. It spans five injection vectors, seven event categories and about 10,000 decisions on 15 U.S. stocks. Fabricated news reached 62% attack success versus 14% for prompt injection, and two 30-word templates hit 100%. Only hierarchical aggregation reduced success among the defenses tested.
arxiv.orgpaperAdded 21 Oct 2026, published 19 Oct 2026π‘οΈ Security
E-Layout: Layout-Stage Logic Restructuring via RL-Optimized Equality-Saturated Graph Retrieval-Augmented GenerationE-Layout is an ML-driven framework for post-placement logic restructuring in IC physical design. It builds equivalent logic alternatives with e-graph equality saturation, links logic choice to physical realization through a graph-based RAG model, and refines the choices with reinforcement learning on design-level timing feedback. On 9 designs it gives about 6% TNS and 2% WNS improvement and 1% less area than a commercial physical design flow.
arxiv.orgpaperAdded 21 Oct 2026, published 19 Oct 2026π§ AI
How Benchmark Graph Construction Shapes Multi-Hop KG Navigation: A Controlled Audit of PathQuestion and PathQuestion-LargeThis paper audits the PathQuestion (PQ) and PathQuestion-Large (PQL) multi-hop knowledge-graph QA benchmarks as graph-navigation tasks. It holds questions, answers, path annotations and splits fixed, and replaces each released task-filtered graph with the larger source KG. Restoration cuts released-answer accuracy and trajectory fidelity for frozen small-language-model policies and trained MINERVA policies, and graph-consistent evaluation recovers only part of the loss.
arxiv.orgpaperAdded 21 Oct 2026, published 19 Oct 2026π§ AI
SHADE: Shrinkage via Halted Alpha-stable Denoising for Heavy-Tailed Probabilistic Time Series ForecastingSHADE is an alpha-stable LΓ©vy diffusion forecaster that stops denoising at a nonzero depth, so the leftover stable kernel shrinks the predictive distribution instead of leaving it overconfident. It offers a scale-calibrated halt and a context-amortized halt that needs no noise labels. Median CRPS improves 21.7% on synthetic data with alpha at or below 1.3, with tail calibration gains on cryptocurrency and foreign-exchange series.
arxiv.orgpaperAdded 21 Oct 2026, published 19 Oct 2026π§ AI
VibeTraining-Bench: Data-Trainer-Harness Co-Design for Iterative System ImprovementVibeTraining-Bench is a benchmark for cross-component co-design, where research agents iteratively refine training data, trainers and inference harnesses for a fixed starting agent system. Tasks cover terminal operation, software engineering, multi-turn tool use and math reasoning, with safeguards against reward hacking. On SWE-bench Verified, GPT-6 Astra raises the target system from 32.9% to 53.7%, against 55.4% for the human-developed instruct model.
arxiv.orgpaperAdded 21 Oct 2026, published 19 Oct 2026π§ AI
Large-Scale Biomedical RAG: Corpus Scaling, Document Representation, and Efficiency Trade-offsThis paper is a controlled, large-scale evaluation of biomedical Retrieval-Augmented Generation across growing corpus sizes. It compares abstract, flat full-text and hierarchical full-text representations, with and without reranking, on multiple-choice QA over five external benchmarks and a held-out test set. RAG gave mean gains of up to 9.6 points externally and 10.2-30.3 points on the held-out set. Hierarchical indexing used 67% fewer units and 44-56% less storage than flat full-text.
arxiv.orgpaperAdded 21 Oct 2026, published 19 Oct 2026π§ AI
CHARRM - Characterizing Hardware Leakage in the Robust Random Probing ModelCHARRM is a verification methodology for masked hardware circuits in the (g, t, c)-robust (p, Ξ΅)-random probing model. It extends leakage characteristics to glitch-extended and transition-extended robust probing on arbitrary circuit structures, and links them to the Set of Input Shares (SIS) function for composability notions. It outperforms IronMask on larger circuits and gives exact verification of larger composed circuits in case studies.
eprint.iacr.orgpaperAdded 20 Oct 2026, published 19 Oct 2026π‘οΈ Security
Privacy with Leakage from Falsifiable AssumptionsPrivacy with Leakage from Falsifiable Assumptions is an ASIACRYPT 2026 paper by Francesco Berti and Itamar Levi. It replaces simulatability with "secure refreshing", a key-refreshing assumption that evaluation laboratories can test directly, and adds "strongly protected secure refreshing". Using these, it proves privacy of the PSV encryption scheme without assuming a leak-free component.
eprint.iacr.orgpaperAdded 20 Oct 2026, published 19 Oct 2026π‘οΈ Security
A Note on the Security of ECDSA with Presignatures or Biased NoncesA Note on the Security of ECDSA with Presignatures or Biased Nonces (Couteau and Makriyannis, ePrint 2026/2545) examines alternative ECDSA modes built for faster distributed signing. It shows that the security of some variants used in deployed libraries is equivalent, in the generic group and random oracle model, to the average-case hardness of k-SUM. It also proves fine-grained lower bounds on generic group attacks against modes analyzed by Groth and Shoup (Eurocrypt 2022).
eprint.iacr.orgpaperAdded 20 Oct 2026, published 19 Oct 2026π‘οΈ Security
Blind-DLPA: An End-to-End Framework for Profiled Blind Side-Channel AnalysisBlind-DLPA is a multi-task deep-learning framework for profiled blind side-channel analysis, where the attacker has labeled profiling traces but only leakage traces from the target, with no plaintexts or ciphertexts. It estimates Hamming-weight posteriors of an input and a key-dependent intermediate, then ranks key hypotheses against theoretical joint distributions. It recovers keys on unprotected AES and Kyber and on ASCAD (guessing entropy zero with 39 traces), and the authors report collisions in a prior Ascon Hamming-weight model.
eprint.iacr.orgpaperAdded 20 Oct 2026, published 19 Oct 2026π‘οΈ Security
Efficient and Compact High-order Masking Raccoon on Memory Constrained DevicesThe paper presents the first efficient, compact implementation of high-order masked Raccoon (lattice-based signature, CRYPTO 2024) on ARM Cortex-M4, up to 32 masking orders. It uses 3+3+3 layer-merged 32-bit NTT/INTT with lazy reduction, a negative double Montgomery reduction, and one-shot SHAKE256 sampling (at least 1.80x faster). It beats the reference by 1.85x-2.25x and masked Dilithium3 at orders 2, 4 and 8. Second-order leakage tests show DPA resistance once micro-architectural transitional leakage is mitigated.
eprint.iacr.orgpaperAdded 20 Oct 2026, published 19 Oct 2026π‘οΈ Security
How Effectively Do Security Skills Guide Coding Agents in Vulnerability Detection in Linux Kernel?The paper is a large-scale study of 37 security skills run through Claude Code with four LLMs on 100 real Linux kernel vulnerabilities, 14,800 runs in all. Only 24.4 percent of runs found the correct function and 15.7 percent classified the vulnerability correctly. It proposes SKILL-SIF, which evolves skills from failure patterns and raised fully correct detection on 100 unseen vulnerabilities from 2 to 16 percent.
arxiv.orgpaperAdded 21 Oct 2026, published 19 Oct 2026π§ AI
How Effectively Do Security Skills Guide Coding Agents in Vulnerability Detection in Linux Kernel?Empirical study of 37 security skills run through Claude Code with four LLMs on 100 real Linux kernel vulnerabilities across ten classes (14,800 runs). 24.4% of runs found the correct function, 18.3% the function and statement, and 15.7% the vulnerability class. The authors propose SKILL-SIF, which evolves skills from failures and raised fully correct detection on 100 unseen vulnerabilities from 2% to 16%.
arxiv.orgpaperAdded 21 Oct 2026, published 19 Oct 2026π‘οΈ Security
Self-evolving Agent HarnessSelf-evolving Agent Harness is a 66-page survey and theory paper on revising an agent's scaffolding (prompts, memory, workflows, tools, code, plugins) while model weights stay fixed. It frames search as evolutionary optimization and uses continual PAC-learning to derive a generalization bound, a retention bound and a high-probability admission rule with fresh validation data. It separates selection, activation, attribution and improvement as evaluation claims, and covers applications and governance. Code is at github.com/zgcagi/Harness-RSI.
huggingface.copaperAdded 19 Oct 2026π§ AI
HERMES: High-Performance Private Decoding for Large Language ModelsHERMES is a privacy-preserving inference (PI) system optimised for multi-token LLM decoding rather than prefill. It swaps high-round nonlinear protocols for compute- and bandwidth-heavy ones with fewer rounds, and adds a homomorphic-encryption matrix-multiplication protocol that keeps the KV cache encrypted on the server and uses grouped-query attention. On Llama 3.1 8B Instruct it cuts TPOT by up to 2.7Γ and total PI latency by up to 2.1Γ.
eprint.iacr.orgpaperAdded 19 Oct 2026, published 18 Oct 2026π§ AI
Hybrid Reasoning Agents: LLM agents that think in latent space, act through textHybrid Reasoning Agents (HybridAgents) are LLM agents that switch between latent reasoning and text-based interaction in one generation process. A lightweight HybridLink handles mode transitions, continuous working memory keeps hybrid context across turns, and HybridSFT plus HybridRL train when to think latently and when to act in text. Across 3 model scales and 11 benchmarks, the paper reports 10.4% higher performance, 35.5%-54.7% fewer tokens, and 1.8x-2.6x faster inference.
arxiv.orgpaperAdded 19 Oct 2026, published 18 Oct 2026π§ AI
How employment is changing at Anthropic"How employment is changing at Anthropic" is an October 2026 technical report by Nathan Wilmers, Regina Catipon, Maxim Massenkoff and Peter McCrory. It uses internal employment, agent telemetry, output, survey, calendar and hiring data plus 17 interviews. Junior technical hiring fell from 27% to 9%, agent hours reached six times employee hours by August 2026, and adopters' output rose. Employees increasingly do meta-work managing agents.
anthropic.compaperAdded 19 Oct 2026, published 18 Oct 2026π§ AI
SoK: PIAtlas: Decomposing the Unbounded Prompt Injection Attack SpacePIAtlas is a taxonomy of prompt injection attacks organized by how the injected instruction subverts the model, with six mechanism classes as roots of a technique and sub-technique hierarchy. The authors release PICorpus, a license-clean collection of public prompt-injection datasets, and map thousands of records to PIAtlas under a human-verified protocol. Results show attacks combine several techniques from few mechanisms, agent benchmarks cover only part of the space, and adaptive attackers favor mechanisms that curated benchmarks underrepresent.
arxiv.orgpaperAdded 21 Oct 2026, published 18 Oct 2026π‘οΈ Security
GKS FHE: Security Analysis"GKS FHE: Security Analysis" is a Cryptology ePrint Archive preprint (2026/2523, October 2026) giving a formal security analysis of the Gribov-Kahrobaei-Shpilrain private-key fully homomorphic encryption scheme. The abstract says the scheme needs no bootstrapping or de-linearization, gives bit-exact decryption, supports native encrypted search and has unbounded depth. The page shows only the abstract, so the analysis's methods and results are not visible.
eprint.iacr.orgpaperAdded 19 Oct 2026, published 18 Oct 2026π‘οΈ Security
The One-Pixel of Reasoning: One Truthful Relation Is Enough to Mislead LLM AgentsThe One-Pixel of Reasoning introduces the one-relation attack (ORA), which finds a critical implicit warrant linking evidence to a conclusion and inserts one source-grounded sentence that qualifies it, steering an LLM agent to a wrong belief. Across eighteen models on biomedical inference and vulnerability detection, best-of-10 attacks flip initially correct answers 54.9% of the time for proprietary models and 80.0% for open-weight models. Attacks transfer without victim feedback, can pass source-support checks, and multi-agent debate raises team error from 50.0% to 59.5%.
arxiv.orgpaperAdded 21 Oct 2026, published 17 Oct 2026π‘οΈ Security
Superspecial points on Humbert surfaces and the probability of (N,N)-splittingDetermines, to first order in 1/p with an explicit error bound, the proportion of superspecial principally polarized abelian surfaces over F_p-bar (p β‘ 3 mod 4) that are optimally (N,N)-split. The expected number of optimal splittings is exactly 5NΒ·J_2(N)(p-1)/(pΒ²+1), so the split proportion is about 5NΒ·J_2(N)/p. This gives the stationary target density of the splitting-detection attack on the dimension-two superspecial isogeny problem, which was previously known only from experiments or a one-sided bound. The proofs use Siegel's mass formula and genus averages over refined Humbert invariants, and every formula was checked by exact computation at twelve primes.
eprint.iacr.orgpaperPublished and added 17 Oct 2026π‘οΈ Security
Eο¬cient Fixed-Point Implementation of MitakaPresents a fixed-point C implementation of the Mitaka signing algorithm, a simpler, parallelizable Falcon (FN-DSA) variant. It replaces MitakaZ's wide integral Gram root decomposition with a fixed-point square Cholesky decomposition, which cuts the cost of integer Gaussian sampling, and proves bounds on intermediate values and representation errors without empirical assumptions. Signing averages 361 kcycles (Mitaka-512) and 707 kcycles (Mitaka-1024) on AVX2, and 4.0 and 7.8 Mcycles on an STM32F411 Cortex-M4F. This makes floating-point-free lattice signatures practical on constrained devices.
eprint.iacr.orgpaperPublished and added 17 Oct 2026π‘οΈ Security
DPA-style Attacks on VOLE-in-the-Head Signature SchemesPresents the first DPA-style power side-channel attack framework against VOLE-in-the-Head signature schemes, targeting the secret witness whose recovery enables forging signatures on arbitrary messages. It analyzes leakage from sensitive intermediate values in VOLE correlations and proposes six attack classes (two vertical, four horizontal) on FAEST and SDitH, both in NIST's third round of additional signatures. Attacks are validated with simulated leakage under varying noise and real measurements on three ARM Cortex-M4 devices.
eprint.iacr.orgpaperPublished and added 17 Oct 2026π‘οΈ Security
Associated-Data Correlations in Eevee: Deterministic Forgeries against Nonce-Misuse SecurityCryptanalysis of the Eevee forkcipher-based AEAD modes Umbreon and Espeon, which claim online AE security under nonce reuse. Associated-data correlations give probability-one non-empty-message forgeries with three encryption queries and one verification query. The paper adds an affine treatment of partial final blocks (n-r+3 queries, or n-r+2 with adaptive choices). It also checks the published Umbreon attack with the official ForkSkinny primitive and reports a two-query attack accepted by the unmodified public C modes.
eprint.iacr.orgpaperPublished and added 17 Oct 2026π‘οΈ Security
OpenGCUA: Toward a Fully Open Stack for Generalist Computer UseOpenGCUA, from Alibaba's MAI-UI team, is an open stack for generalist computer-use agents (GCUAs), where the model chooses how to observe, act and organize work across GUI, accessibility-tree, API and shell interfaces. Its design combines code execution (GUI actions written as programs with loops and branches) with harness-to-model decision transfer. On OSWorld-v2 it raises mean partial score by +19.6 points across eight models, including GPT-6 Astra and Claude Opus 5, and cuts reported steps per task by 53%. The release includes the harness, prompts, evaluation trajectories, a macOS real-device harness, a cross-device SDK and an interactive lab. It also shows large efficiency gaps between models: Qwen3.8-Max used 19.4x the reasoning tokens of GPT-6 Astra on real macOS tasks.
huggingface.copaperAdded 17 Oct 2026π§ AI
RATION: Towards Quantitative Risk-Based Access Control for AI AgentsRATION is a security framework for AI agents that tracks measurable risks from agent actions and enforces quantitative constraints during task execution, instead of simply restricting actions. It builds a task-specific policy from explicit constraints in the user request plus implicit risks calibrated from historical runs of similar tasks. Experiments on four security benchmarks show strong security with high task utility across models and environments.
arxiv.orgpaperAdded 21 Oct 2026, published 16 Oct 2026π‘οΈ Security
Zippel: A Language, Compiler, Runtime, and Analyzer for ZK Proof SystemsZippel is a language, compiler, runtime and analyzer for writing zero-knowledge proof systems in syntax close to the pseudocode in cryptography papers. Its type system and runtime remove vulnerability classes by construction, for example by synchronizing transcripts automatically and applying the FiatβShamir transform correctly. Its static analyses check completeness and soundness from the protocol description alone. The authors implemented 35 proof systems, including Sumcheck, Schnorr, KZG, Groth16, Bulletproofs, Hyrax, Spartan, Dory, HyperPlonk, DeKART and Pari. They report performance competitive with hand-written multi-core implementations.
eprint.iacr.orgpaperAdded 17 Oct 2026, published 16 Oct 2026π‘οΈ Security
AI-Driven Reproducibility and Analytical Robustness in Scientific DiscoverySEER-Repro is a benchmark of 20 published papers based on the SEER cancer registry, with the data needed to reproduce their findings. An LLM agent reproduces 77.4% of 2,190 atomic claims. A second agentic pipeline finds alternative analytical choices and reruns the analyses, flagging potentially consequential choices in 9.5% of fully reproduced findings for expert review.
arxiv.orgpaperAdded 20 Oct 2026, published 16 Oct 2026π§ AI
DLite: History-free Speculative Decoding for Agentic AIDLite is a history-free speculative decoding framework for agentic LLM workloads. It reuses the target model's contextual hidden states and predicts locally without keeping the draft model's historical KV cache, which avoids the up to 80% acceptance-length drop seen with long, multi-turn contexts. A lightweight sequential head restores intra-block causal dependencies, and a two-stage training strategy is used. It reaches 2-6 acceptance length and beats DSpark by up to 70%.
arxiv.orgpaperAdded 20 Oct 2026, published 16 Oct 2026π§ AI
GLOBE: Evolving Structured Agentic Memory for E-commerce Product Optimization in Generative SearchGLOBE is an agentic framework that optimizes e-commerce product listings for generative search by storing strategies in an evolving handbook of explicit, field-scoped behaviors. An Editor applies behaviors and gets rank-based feedback, a Reflector turns it into updates, a Moderator removes redundant proposals, and a Curator commits changes. Harmful behaviors are deactivated. Structured behaviors beat monolithic prompt optimization and transfer to unseen product categories.
arxiv.orgpaperAdded 20 Oct 2026, published 16 Oct 2026π§ AI
FedRAPP: Federated Test-Time Prompt Tuning for Vision-Language Models with Reliability-Aware Prompt PersonalizationFedRAPP is a personalized aggregation framework for Source-Free Federated Test-Time Prompt Tuning (SF-FTTPT), where clients adapt CLIP soft prompts on unlabeled, non-IID test streams without source data. It combines reliability-aware client assessment, a server-side exponential moving-average prompt memory and similarity-guided peer aggregation. Across nine CLIP benchmark datasets and ImageNet variants it beats standard federated aggregation baselines while keeping prompt-only efficiency.
arxiv.orgpaperAdded 20 Oct 2026, published 16 Oct 2026π§ AI
HardEval: An Execution-Verified Benchmark for AI-Driven Security Hardening and Compliance RemediationHardEval is an execution-verified benchmark for language-model security hardening, built from Red Hat Enterprise Linux 8 STIG controls that fail on an unhardened baseline. Models receive only the required security outcome and write a Bash script, which runs on a live VM and is graded fail to pass with OpenSCAP/OVAL checks. Fourteen frontier and open-weight configurations show uneven results across domains, with plausible code that misses the exact compliance condition. The benchmark is public.
arxiv.orgpaperAdded 20 Oct 2026, published 16 Oct 2026π§ AI
On the possibilities and limitations of LLM-based multi-agent systems for multi-criteria decision-making in healthcare operations managementThis paper proposes a framework for auditing LLM-agent-generated stakeholder preferences before they are used as weights in multi-objective optimization for healthcare operations. Experiments on outpatient appointment scheduling and emergency department configurations show that explicit ratings vary by role and clinic conditions, deliberation can erase role differences, and pairwise choices depend largely on option order. Robust weighted-sum models often select different schedules than average weights.
arxiv.orgpaperAdded 20 Oct 2026, published 16 Oct 2026π§ AI
OwlSight: A Panoramic Monitor for Chain-of-Thought ReasoningOwlSight is a chain-of-thought monitor that uses "Factor", a monitoring requirement written into the prompt, so one monitor can cover many tasks across capability, safety and trustworthiness. Factors come at fine granularity (a specific leaked email address) and coarse granularity (privacy leakage). On 15,971 reasoning trajectories it beats general-purpose LLMs by 1.32-30.57 points (fine) and 11.71-27.81 points (coarse), and reaches state-of-the-art on OpenAI's CoT monitorability benchmark. It generalizes to unseen models and resists Factor rephrasing, CoT compression and obfuscation.
arxiv.orgpaperAdded 20 Oct 2026, published 16 Oct 2026π§ AI
FlexPart: Text-Controlled Semantics-Aware 3D Part Segmentation at Flexible GranularityFlexPart is a framework for text-controlled 3D mesh segmentation that assigns discrete part IDs to mesh faces through a view-independent part-identity field. It uses a control prompt of part names with location and shape clauses, trained on a VLM-built multi-granularity dataset. On FlexPartBench it raises average mIoU by 22% over the strongest baseline, and by 15% with planner-completed prompts.
arxiv.orgpaperAdded 20 Oct 2026, published 16 Oct 2026π§ AI
A Language-Informed Loss for Visual GenerationLILIE (Language-Informed and Lossless Image Encoder) is an invertible image transform built from a normalizing flow transformer, trained jointly with a vision-language model via next token prediction so captions can be recovered from noised features. The encoder supplies a language-informed loss for text-to-image generation. JiT models trained with it cut gFD from 66.84 to 53.01 against a pixel-only baseline on the GPIC dataset. Code, encoders and models are released.
arxiv.orgpaperAdded 20 Oct 2026, published 16 Oct 2026π§ AI
ThetreStageAI: Multi-View Retrieval-Augmented Generation for Structured Bengali Theatre Production PlanningThetreStageAI is a retrieval-augmented framework for structured Bengali theatre production planning. It keeps separate scene, actor-blocking and lighting views, embeds Bengali text with BGE-M3, indexes it in view-specific Qdrant collections, and has Gemini generate schema-constrained JSON, with validation and at most one repair attempt. The authors build a synthetic dataset of 500 records (1,500 retrieval documents) and compare single-combined retrieval with multi-view retrieval. Code and data are public.
arxiv.orgpaperAdded 20 Oct 2026, published 16 Oct 2026π§ AI
Enhancing RAG-based Medical VQA with Gated Multimodal RepresentationsThis paper presents a multimodal retrieval-augmented generation framework for Medical Visual Question Answering. A Gated Multimodal Unit learns a joint query representation from the medical image and the clinical question, so evidence retrieval uses both modalities while the Med-LVLM stays frozen. On benchmark datasets it consistently beats a reference Med-LVLM and stays competitive with state-of-the-art methods. The page gives no dataset names or numbers.
arxiv.orgpaperAdded 20 Oct 2026, published 16 Oct 2026π§ AI
Trapped in Your Story: Evaluating Narrative-Induced Sycophancy in Large Language ModelsThis paper builds a benchmark of 500 debatable questions across ten domains to measure how user narratives steer LLM agreement. Each question has 11 matched conditions (one neutral, five mirrored narrative levels per opposing stance), giving 5,500 instances across seven LLMs. Causal framing and worldview synthesis raise agreement, personal experience can lower it, and GPT-5.1 ablations show bullet formatting also increases agreement.
arxiv.orgpaperAdded 20 Oct 2026, published 16 Oct 2026π§ AI
Secure Compilation of Probabilistic Side-Channel CountermeasuresPresents a language- and leakage-model-agnostic framework for provably secure compilation of probabilistic side-channel countermeasures. It uses a deterministic leakage-preservation relation that implies preservation of d-NI, d-SNI and cryptographic constant-time without probabilistic proof obligations. The authors prove in Rocq that a model of the Jasmin compiler's core pipeline and several optimizing passes preserve security in the value-probing model with glitches. They also add source-level annotations to harden against transition leakage and release libmasking, an arbitrary-order masked gadget library in Jasmin that compiles to ARM and RISC-V, with C bindings and hardware benchmarks.
eprint.iacr.orgpaperAdded 17 Oct 2026, published 16 Oct 2026π‘οΈ Security
Sparse Secrets, Dense Problems: Efficiently Masking HQC in HardwareePrint paper presenting the first fully masked hardware implementation of HQC (key generation, encapsulation, decapsulation) on FPGA. It introduces a mixed Boolean/arithmetic masking for sparse-dense vector multiplication, proven first-order secure in the transition- and glitch-robust probing model and PINI-composable, at only 3% extra cycles and 81 random bits per cycle. It also shows a profiled horizontal side-channel attack on Rotate-and-Add multipliers that recovers support indices within Β±8 positions from 200 traces despite TVLA showing no leakage after 10 million traces, and adds integrated hiding countermeasures costing 1.7% latency.
eprint.iacr.orgpaperAdded 17 Oct 2026, published 16 Oct 2026π‘οΈ Security
MobileInject: Evaluating Reasoning-to-Action Security of MLLM-Based Mobile Agents under Cross-Modal Consistency InjectionMobileInject is a benchmark for testing MLLM-based smartphone agents against indirect multimodal injection. It has an interactive evaluation framework with 11 scenarios, 9 security-risk categories and 108 executable risk instances. It adds Cross-Modal Consistency Injection, Multi-Role Collaborative Deception, Reasoning-Camouflage Injection and a Reasoning Security Diagnosis Framework. Experiments find broad vulnerability, with many failures from early reasoning hijacking.
arxiv.orgpaperAdded 20 Oct 2026, published 16 Oct 2026π‘οΈ Security
Power Analysis on SQIsign via Ideal Reconstruction from Quaternion LeakagesePrint paper identifying five side-channel vulnerabilities in the signing procedure of Round-3 SQIsign, the isogeny-based signature scheme in NIST's additional post-quantum signature process. It gives polynomial-time algebraic algorithms that recover the secret key from leaked quaternion/ideal intermediate values, including cases where only partial bits leak. It also demonstrates power analysis on the SQIsign source code to extract the needed leakage, which earlier work on Round-1 or toy parameters did not do.
eprint.iacr.orgpaperAdded 17 Oct 2026, published 16 Oct 2026π‘οΈ Security
Ignored, Not Refused: What Low Prompt-Injection Success Rates Hide in Small Tool-Using AgentsIgnored, Not Refused audits 33,000 trajectories from eleven open-weight agents (2-14B parameters) on InjecAgent and AgentDojo. A label-blind LLM judge finds most failed indirect prompt injections are ignored (76-80%) rather than refused (17-18%). Changing only the system prompt moves InjecAgent ASR from 0.2% to 43%. The Attack-Task Outcome Matrix (ATOM) shows 21.7% of AgentDojo episodes were safe but left the user task incomplete. The corpus, judge prompt and code are released.
arxiv.orgpaperAdded 20 Oct 2026, published 16 Oct 2026π‘οΈ Security
Ignored, Not Refused: What Low Prompt-Injection Success Rates Hide in Small Tool-Using Agents"Ignored, Not Refused" audits 33,000 trajectories from eleven open-weight agents (2-14B parameters) on InjecAgent and AgentDojo. A label-blind LLM judge finds 76-80% of failed injection attacks were ignored and 17-18% refused. Changing only the system prompt moves InjecAgent attack success rate from 0.2% to 43%, and the ATOM matrix shows 21.7% of AgentDojo episodes were safe but left the user's task undone. The corpus, judge prompt and code are released.
arxiv.orgpaperAdded 20 Oct 2026, published 16 Oct 2026π§ AI
LexPilot: Benchmarking the Proactive Interaction Ability of Legal LLMs with Laypeople in Chinese Civil Case ConsultationLexPilot is a benchmark linking proactive legal interaction to claim-level verdict prediction, built from 432 real Chinese civil judgments across 36 causes of action. It pairs expert-reviewed complete and underspecified consultation histories with court verdicts. Current LLMs score on average 23.84% lower on judgment prediction in underspecified consultations than in fully specified ones, and the paper analyses the bottlenecks.
arxiv.orgpaperAdded 20 Oct 2026, published 16 Oct 2026π§ AI
Rethinking GRPO for Large Reasoning Model Safety AlignmentBeacon is a safety alignment framework for large reasoning models that fixes two GRPO failure modes: advantage collapse, where homogeneous rollout groups give vanishing advantages, and unsafe diversification, where unsafe behaviors persist and spread. It combines Safety Signal Recovery (advantage-guided trajectory filtering plus safe reference supervision) with Safety-Utility Decoupled Alignment (category-aware rewards, benign-only KL anchoring). Tested on four Qwen3 and DeepSeek-R1-Distill variants across eight benchmarks, it cuts average safety error by up to 32.83 percentage points with low over-refusal.
arxiv.orgpaperAdded 20 Oct 2026, published 16 Oct 2026π§ AI
MUB: An Identity-Masked Benchmark for Music Understanding in Multimodal Language ModelsMUB (Music Understanding Benchmark) is a set of 500 identity-masked recordings with existing annotations for tempo, key, time signature and structural intervals. It covers all 24 keys, tempos of 47 to 180 BPM and 4,676 intervals, and strips titles, artists and platform IDs from inputs. Baselines reach 53.6% tempo accuracy (DSP) and 98.4% time-signature accuracy (constant 4/4). No multimodal LLM has been tested yet, and rights clearance is unresolved.
arxiv.orgpaperAdded 20 Oct 2026, published 16 Oct 2026π§ AI
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