Inside a malicious Claude Code-branded extension and its persistent SSH backdoorMicrosoft Threat Intelligence analyzes a tampered anthropic.claude-code extension (versions 2.1.312 and 2.1.313) served on the Cursor marketplace on 29 October 2026. The injected JavaScript loader adds an SSH key labeled svc-telemetry, opens a reverse SSH tunnel and sets up persistence on macOS, Linux and Windows. The post gives cleanup steps, IOCs and Defender XDR hunting queries. VS Code Marketplace and npm were not affected.
microsoft.comwriteupPublished and added 31 Oct 2026π‘οΈ Security
nemotron-halloweenMonsterHouse is a Halloween interactive projection built on the NVIDIA Nemotron Voice Agent: Nemotron Speech ASR, Nemotron 3.5 Bolt E4B 4GB with a LoRA persona adapter, Magpie TTS Zeroshot and Audio2Face-3D in Unreal Engine, on two RTX Blackwell GPUs. Median end-of-speech-to-audio is 1.70 seconds live and 0.72 seconds with cached responses. The post gives a build path and tips on caching and state handling.
huggingface.cowriteupPublished and added 30 Oct 2026π§ AI
From help desk impersonation to AD CS abuse: Investigating ESC1 and ESC8 intrusion pathsMicrosoft Threat Intelligence analysis of two human-operated intrusions that began with Teams help desk impersonation and Quick Assist sessions, then diverged at AD CS. Case 1 abused an ESC1 template for privileged certificates and DCSync, with an excluded account later used for Rclone exfiltration. Case 2 used PetitPotam and ESC8 relay to get a domain controller certificate and PKINIT. Includes investigation steps, AD CS hardening and KQL hunting queries.
microsoft.comwriteupPublished and added 30 Oct 2026π‘οΈ Security
Trojanized Claude Code Extension Plants an SSH BackdoorAnalysis of a trojanized anthropic.claude-code 2.1.313 extension (darwin-arm64), found on Open VSX, with a 66-line loader prepended to extension.js. It adds an svc-telemetry key to authorized_keys, opens a reverse SSH tunnel to 134.209.82.225, sets persistence (LaunchAgent, cron, scheduled task) and sends host recon over HTTP port 8099. Includes IOCs, hashes and response steps; no further payload download was found.
opensourcemalware.comwriteupPublished and added 30 Oct 2026π‘οΈ Security
Trojanized Claude Code Extension Delivered Persistent SSH Backdoor to Developer MachinesThe Claude Code VS Code extension anthropic.claude-code 2.1.313 was published on Open VSX on 29 October 2026 with a malicious loader prepended to extension.js. On load it planted an attacker SSH key (svc-telemetry), installed per-OS persistence, opened a reverse SSH tunnel and beaconed host recon over HTTP. Cursor reports at most 5,000 users received it in an 11-hour window. The post gives the timeline, cleanup artifacts and credential rotation steps.
stepsecurity.iowriteupPublished and added 30 Oct 2026π‘οΈ Security
Backdoor in Claude Code for VS Code extension on the Cursor MarketplacePhorion analyzes a backdoor injected into versions 2.1.312 and 2.1.313 of the official Claude Code for VS Code extension on the Cursor Marketplace. An IIFE prepended to extension.js plants an SSH key, opens a reverse SSH tunnel to 134.209.82[.]225, persists via a fake com.apple.sysmond LaunchAgent and beacons host recon. A macOS systemsetup check bug usually stops SSH from being enabled. The post lists detections and remediation.
phorion.iowriteupAdded 31 Oct 2026, published 30 Oct 2026π‘οΈ Security
20 security issues found in Xiaomi devicesOversecured's write-up of 20 vulnerabilities in Xiaomi apps and system components, reported to Xiaomi between 25 and 30 April 2023. Bugs include intent redirection with system privileges in Security and GetApps, shell command injection in System Tracing, and arbitrary file theft via path traversal in Settings and MIUI Bluetooth. Each has a PoC. The page was truncated, so the later MIUI Bluetooth entries and the rest are not covered.
oversecured.comwriteupAdded 29 Oct 2026π‘οΈ Security
Claude Code regularly sends each background agentβs transcript to its modelno-agent-summary.js is a roughly 70-line Bun preload by Flamerix AI that stops Claude Code from re-sending each background agent's full transcript to its model every ~30 seconds for a status-line summary. The write-up cites OpenTelemetry measurements of 18 to 26 percent of spend (since version 2.1.232), explains the setTimeout hook, and gives install and verify steps. It was tested on Linux with Claude Code 2.1.257 to 2.1.312.
gist.github.comwriteupAdded 30 Oct 2026, published 29 Oct 2026π§ AI
Cross-request KV cache exposure in the GLM-5.3 Workers AI model (155 responses)Cloudflare postmortem of a tenant isolation failure in the GLM-5.3 Workers AI model (27 August to 9 September 2026), in which 155 responses to prompts over 681,280 tokens contained other customers' data. Root cause was a KV pool smaller than the 1,048,576-token context window, combined with an SGLang bug in disaggregated prefill/decode mode that let decode read stale KV pages. It lists the fixes (SGLang v0.5.22 patches), hardening steps and operator recommendations.
blog.cloudflare.comwriteupAdded 27 Oct 2026, published 26 Oct 2026π‘οΈ Security
Fixing Tool-Call Accuracy in vLLMUbicloud's post explains why tool-call schema accuracy matters for agentic workloads and how it fixed it when serving Kimi K2.6 and DeepSeek V4 Flash. With vLLM 0.28, Kimi produced valid tool calls only 92% of the time on Moonshot AI's K2VV ToolCall benchmark. Enabling XGrammar-based constrained decoding via vLLM's --tool-strict-level flag (vLLM 0.31) raised schema accuracy to 100%.
ubicloud.comwriteupAdded 27 Oct 2026, published 26 Oct 2026π§ AI
Gheist: Attempted Scaled Abuse of Stolen GitHub Tokens StumblesGheist is a campaign tracked by Wiz Research since 15 September 2026 that uses stolen GitHub tokens to push a sync-check workflow on ci-sync-* branches in every reachable repository. The workflow prints base32-encoded secrets into logs, which the tool downloads through the GitHub API and then deletes. Over 13,500 branches from 850+ accounts were recovered. The post covers the two tool variants, a buggy self-hosted runner payload, GitHub's approval hold (which does not cover private repositories), overlaps with other campaigns, hunting queries, IOCs and hardening steps.
wiz.iowriteupPublished and added 25 Oct 2026π‘οΈ Security- A 10-year-old CNN outperforms frontier LLMs for skin cancer diagnosis
A dermatologist tested GPT-6 Astra and Claude Fable 5.1 on 200 biopsy-proven lesions from MILK10k, giving each a clinical and a dermoscopic image. A CNN (Inception v3, fine-tuned for about twenty minutes on 68,011 ISIC images) named the right diagnosis for 62% of lesions, against 42% for both LLMs. The post lists caveats (small sample, single run, possible contamination) and links the cases, prompts, replies and scoring code.
lynchlab.netwriteupAdded 26 Oct 2026, published 25 Oct 2026π§ AI - Abusing Linux fanotify for Anti-Forensics
Abusing Linux fanotify for anti-forensics: a privileged userspace process can use the fanotify API to deny other processes the right to open an otherwise normal file. Reads fail with EPERM even for root, while name, ownership, timestamps and permissions look ordinary, so a scanner that cannot open a file may report no detections without inspecting it. Defenders can find malicious fanotify groups and marks via /proc/<pid>/fdinfo, or acquire at the filesystem level instead of opening the pathname.
dfir.chwriteupAdded 1 Nov 2026, published 24 Oct 2026π‘οΈ Security
BrotlipocalypseBrotlipocalypse is an OSM Security post (24 October 2026) on CVE-2026-111497, an out-of-bounds write in the google/brotli C decoder (1.0.3 through 1.2.0). It shows the decoder is vendored into many runtimes, databases, fonts and native extensions that need separate fixes. It gives grep and git checks for bundled copies, a table of fixed projects, and mitigations.
opensourcemalware.comwriteupPublished and added 24 Oct 2026π‘οΈ Security
OVHcloud CLI Compromised via GitHub Release Swap: Detonating the Real GlassWorm Loader and What We FoundAnalysis of the 19 October 2026 swap of binaries on five ovh/ovhcloud-cli GitHub releases (v0.11.0 to v0.15.0), live 94 minutes. StepSecurity rebuilt the attacker's binary, detonated the recovered GlassWorm preinstall.js loader against a controlled Solana dead drop, and found install.sh never exposed arm64 Linux, Homebrew was safe, and `ovhcloud version` showing "undefined" identifies the swapped build. Includes IOCs and recovery steps.
stepsecurity.iowriteupPublished and added 24 Oct 2026π‘οΈ Security- PHP2Shell: pre-auth RCE via PHP memory-limit fatal errors (CVE-2026-109618/109619)
PHP2Shell is Calif's writeup of pre-auth RCE in PHP (CVE-2026-109618, CVE-2026-109619) triggered by memory_limit fatal errors that leave dangling state. It covers a HashTable bucket bug in _zend_hash_str_add_or_update_i, a Session upload-progress stale-pointer bug, and an unserialize destructor-list primitive that reaches PHP-FPM. It lists affected apps (WordPress, Drupal, Joomla, Magento and others) and gives temporary mitigations.
calif.iowriteupAdded 23 Oct 2026π‘οΈ Security
Turning Database Grading into RL Rewards: Post-Training Agents with ThinkingBoxThinkingBox-Training is Microsoft's released RL stack that turns executable database-state checks from ThinkingBox tasks into GRPO rewards. Fifty GRPO steps on 187 curated tasks raised Qwen3.8-27B pass@1 from 51.70% to 60.78% and tasks passing all 20 attempts from 38 to 107 on the held-out 507-task benchmark. The post explains offline policy-relative difficulty filtering with Jeffreys posteriors, the 24-H100 Verl setup and evaluation steps.
huggingface.cowriteupPublished and added 22 Oct 2026π§ AI- M365 Token Spray and Replay Campaign Compromises Business Email Accounts
Huntress analysis of a July to September 2026 token replay ("token spraying") campaign: 497 successful Microsoft 365 sign-ins across 79 organizations, replayed from six addresses in 193.26.115.0/24 (1337 Services GmbH). Tokens came from AiTM relays, device-code phishing and social engineering. It covers four phases, rogue Entra devices, MFA method swaps, hidden inbox rules, hunting queries and Conditional Access guidance.
huntress.comwriteupPublished and added 22 Oct 2026π‘οΈ Security
litellm 1.107.0 Compromised on PyPI: Backdoored Wheels Drop a Credential Stealer and an Hourly Remote Code Loaderlitellm 1.107.0 was published to PyPI on 21 October 2026 with all seven wheels backdoored through an injected `data = "cook"` maturin build line. The wheels drop cook.pth, cook.py and sitecustomize.py, which run on every Python start. They install a "privcollect" credential stealer (browser, SSH, cloud, AI coding tool and LiteLLM proxy database secrets, sent to litellm.dev) and an hourly GitHub dead-drop remote code loader. The post gives IOCs, detection commands and recovery steps.
stepsecurity.iowriteupPublished and added 21 Oct 2026π‘οΈ Security
βNext Exploit Opportunitiesβ: How a Threat Actor Used AI to Help Plan and Execute Multiple Types of Cybercrime ActivitiesUnit 42 analysis of a threat actor, BUGSTER, who ran the Hermes Agent framework with jailbroken DeepSeek V4 and Cursor to plan and run cybercrime. Activity included a WordPress brute force, a MongoDB exfiltration of over 5,200 student records at an Indian university, VoIP fraud planning, Wi-Fi cracking via Vast.ai GPUs, and crypto whale reconnaissance. The report covers the actor's prompt-level safety override, infrastructure (162.243.3[.]92) and attribution.
unit42.paloaltonetworks.comwriteupAdded 30 Oct 2026, published 21 Oct 2026π‘οΈ Security
LiteLLM PyPI Package and Docker Images Compromised to Steal Cloud and AI CredentialsLiteLLM 1.107.0 on PyPI and GHCR images shipped Python startup hooks (cook.pth, sitecustomize.py) that steal cloud, SSH, browser and AI-tool credentials, including LiteLLM proxy database credentials. Image build provenance recorded a lookalike Berri-AI/litellm source repository. The post decodes the payload, encrypted exfiltration and GitHub-driven remote loader, and lists containment steps, MITRE ATT&CK mappings and IOCs.
socket.devwriteupPublished and added 21 Oct 2026π‘οΈ Security
LiteLLM 1.107.0 PyPI Wheel Contains a Credential Stealer and Persistent Python BackdoorLiteLLM 1.107.0 macOS x86-64 PyPI wheel analyzed by OpenSourceMalware contains three injected files (cook.pth, cook.py, sitecustomize.py) that run on every Python start. The payload, called privcollect, steals browser, SSH, cloud, CI/CD and AI-tool credentials, then uploads an AES/RSA-encrypted bundle to www.litellm.dev/healthcheck. A forked loader also fetches domain.txt from GitHub and executes /codepy hourly. The post lists IOCs, hashes and remediation steps.
opensourcemalware.comwriteupPublished and added 21 Oct 2026π‘οΈ Security
LiteLLM compromised again: infostealer and RAT found in version 1.107.0LiteLLM 1.107.0 was compromised on 21 October 2026: the seven compiled PyPI wheels and the official Docker image carried an infostealer and a RAT. The attacker used the maturin `data = "cook"` directive in pyproject.toml to inject cook.pth, cook.py and sitecustomize.py without touching the source repo. The post lists stolen data, the hourly C2 polling via GitHub, wheel hashes, file and network IOCs, and check steps.
aikido.devwriteupPublished and added 21 Oct 2026π‘οΈ Security- Amazon-Themed ClickFix Campaign Serves Up Finger-Licking Malware
Huntress analysis of an Amazon-themed ClickFix campaign that used a Google sponsored result, a fake Amazon login on Google Sites and a fake CAPTCHA to make victims run the Windows finger utility. The .plan script drives IronPython, a Cyrillic-substituted Base64 Python loader, Doina, a Node.js stage, Lumma Stealer via sRDI, and a pirated NetSupport RMM. It lists C2 domains and gives detection tips (aclk/gclid markers, blocking the Run dialog).
huntress.comwriteupPublished and added 21 Oct 2026π‘οΈ Security
Qwen3-Coder writes less secure code when told it's for a US personaHirundo case study on Qwen3-Coder-30B-A3B-Instruct using the BaxBench SecretStorage task. Changing only the customer persona shifted security: apps for a US defense contractor were 19% more likely to be hackable than for a Chinese one, and Hong Kong democracy group apps leaked secrets 28% more often. Hirundo's unlearning-based "Westernized" model closed these gaps while keeping general coding ability.
hirundo.iowriteupAdded 22 Oct 2026, published 21 Oct 2026π§ AI
LiteLLM supply chain compromise: What you need to knowLiteLLM version 1.107.0 was published to PyPI and official Docker images on 21 October 2026 and stayed live for about two hours. Attackers used stolen GitHub CLI OAuth tokens from three engineers to run the release pipeline against a lookalike fork, Berri-AI/litellm. The payload (cook.pth, cook.py, sitecustomize.py) steals cloud, developer, AI-tool and browser credentials, and includes a polling RAT. The post lists removal and rotation steps.
securitylabs.datadoghq.comwriteupAdded 29 Oct 2026, published 21 Oct 2026π‘οΈ Security
ALTK-Evolve: How learned memory tops the ΟΒ²-bench leaderboard on customer service tasks without a frontier modelALTK-Evolve is an IBM Research method that distills an agent's own training-task trajectories into short behavioral guidelines appended to the system prompt, with no weight updates. On ΟΒ²-bench, a stock ReAct agent with gpt-4.1 reaches 67.5% Pass^4 on retail, and gpt-5.5 reaches 82% on airline. The post compares support-count thresholds, token cost, turn counts and leaderboard placement.
huggingface.cowriteupPublished and added 20 Oct 2026π§ AI
CVE-2026-106173 Deep-Dive: FortiSIEM gRPC Path Traversal File Write RCECVE-2026-106173 is an unauthenticated arbitrary file write in the FortiSIEM phQueryMaster gRPC service on tcp/27918, advised by Fortinet on 13 October 2026. The SendQueryResult handler concatenates an attacker-controlled query-id into a path, and a null byte in the header removes the server-added filename suffix. Overwriting /opt/charting/redishb.sh, run every 60 seconds by cron, gives root-level code execution. IOCs are file timestamps.
horizon3.aiwriteupAdded 29 Oct 2026, published 20 Oct 2026π‘οΈ Security
From JavaScript to Renderer Code Execution: Three V8 Vulnerabilities and Two v8CTF Flags | depthfirstDepth First Security's write-up describes three V8 bugs found using its dfs-large1 research tooling: CVE-2026-78938, a type confusion in Promise.prototype.finally that lets an internal helper be constructed and return a primitive; CVE-2026-79236, a TurboFan load-elimination bug that keeps a stale property-array pointer after object migration; and a shared WebAssembly memory sandbox escape (issue 546253900) caused by mismatched backing-store registration during serialization. It walks through turning each memory bug into addrof/fakeobj primitives, chaining either with the sandbox escape to reclaim a freed V8 isolate via a WebSocket allocation, and pivoting through a CFI-constrained ROP chain to achieve Chrome renderer code execution, earning two v8CTF flags. Fixes landed between August 20 and 25, 2026.
depthfirst.comwriteupAdded 29 Oct 2026, published 20 Oct 2026π‘οΈ Security
Glassworm Hacks OVH Clouds CLI toolOVHcloud CLI (ovh/ovhcloud-cli) release assets for v0.11.0 to v0.15.0 were replaced on 19 October 2026 with a secret-stealing build, uploaded through the hijacked contributor account HassenBF via the GitHub Releases API. No CI ran and source was untouched. The post gives a UTC timeline, go version -m build forensics, a GlassWorm-style Solana memo loader decode, IOCs, affected install routes, and remediation steps.
opensourcemalware.comwriteupPublished and added 19 Oct 2026π‘οΈ Security
Plex vulnerabilities being exploited in the wild to drop a cryptominerHoneypot writeup of in-the-wild exploitation of Plex Media Server through the Plex2Shell chain (CVE-2026-96652, -96654, -96655, -96656) in October 2026. Attackers from 45.194.92.222, 91.92.40.202 and 176.65.139.228 used SSRF-style timeline/subscribe requests and downloaded a Docker-named dropper and an XMRig miner from 217.60.194.116. Includes file hashes, a later-seen proxyware sample (myawesomeproxy), lab pcaps for signatures and links to sandbox reports.
boredhackerblog.infowriteupAdded 20 Oct 2026, published 19 Oct 2026π‘οΈ Security
Loud, Fast, and Everywhere: Anatomy of a Real AI-Driven Cloud AttackWiz CIRT write-up of an AI agent-run intrusion against a multi-cloud organization (GCP, AWS, Kubernetes, CI/CD, GitOps, identity provider). It lists traits of AI-driven attacks: machine-speed tempo, credential chaining, pentest/probe naming, numeric task IDs and commented code. Initial access was a Java RCE in an exposed Kafka UI. It closes with detection and response advice: unified logs, workload visibility and trust isolation.
wiz.iowriteupPublished and added 19 Oct 2026π‘οΈ Security
Putting models to the secure coding test: Security rulesDatadog Security Labs tests whether Project CodeGuard v1.4.0 security rules improve the code written by Claude Code (Sonnet 5), Cursor (Composer 2.5) and Codex (GPT 5.5). Each model built the same document portal app once. Only GPT 5.5 closed the cross-user document IDOR and improved clearly. Sonnet 5 and Composer 2.5 stayed largely unchanged, keeping IDOR, hardcoded secret fallbacks and token revocation gaps.
securitylabs.datadoghq.comwriteupAdded 29 Oct 2026, published 19 Oct 2026π§ AI- ConnectWise (SkyKick) Vendor Credentials Abused in M365 Attacks
Huntress documents abuse of ConnectWise Cloud Backup (formerly SkyKick) vendor app credentials, used on October 15 from 144.172.64[.]128 to obtain Microsoft Graph tokens in at least 162 customer M365 tenants via client assertion. In one tenant, a ConnectWise Cloud Management Teams app self-assigned Global Administrator and added client secrets to an MSP management app and Huntress's own app, a persistence technique. The post lists application IDs, Entra sign-in and audit-log checks, user-agent indicators (kiota-dotnet vs Python-urllib/3.12, curl/7.88.1), and mitigation steps such as disabling (not deleting) the enterprise apps and reviewing added credentials.
huntress.comwriteupAdded 17 Oct 2026, published 16 Oct 2026π‘οΈ Security
Claude reveals ECDSA curve originsAnthropic's Frontier Red Team reports that Claude recovered how the NIST P-192/224/256/384/521 and ANSI X9.62 curve seeds were generated. They are outputs of the C library's lrand48 LCG seeded with 1997β98 Unix timestamps, not hashes of a passphrase. The method scanned for weak-PRNG signatures, then used LLL lattice reduction to recover the truncated LCG state and stepped it back to srand48 initialization. Claude also traced some base points to the FreeLIP/NTL random generator. Reproducible Python is included. The authors say this is not an attack and makes deliberate backdoors less plausible. The B-163 seed and the base points of P-224/256/384/521 and the binary curves remain unexplained.
anthropic.comwriteupAdded 17 Oct 2026, published 16 Oct 2026π‘οΈ Security
Claude reveals ECDSA curve originsAnthropic's Frontier Red Team reports that Claude, given no hint, worked out how the NIST P-192/224/256/384/521 and ANSI X9.62 curve seeds were generated. They came from the C library's lrand48 LCG seeded with Unix timestamps from 1997β98, not from a hash of a phrase. Claude found this by scanning for weak-PRNG signatures and recovering the PRNG state with LLL lattice reduction. It also traced several prime-curve base points to the FreeLIP random generator. The post includes Python code that reproduces the seeds and base points. It says this is not an attack and makes backdoor claims less plausible. B-163 and the other base points remain unexplained.
anthropic.comwriteupAdded 17 Oct 2026, published 16 Oct 2026π§ AI- One parser, two bugs, many routers: Exploiting Broadcom WiFi across eCos, Linux
Long-form write-up of a Hexacon 2026 talk on a WPS EAP reassembly overflow in Broadcom's proprietary 802.11 stack, present since 2010 and incompletely patched in 2018. It is remotely triggerable over WiFi without the network key. It gives information disclosure and code execution on eCos (BCM3380, BCM3383, BCM33834) and Linux (BCM3390, BCM65xx, BCM68xx) platforms. Exploited on Belgian ISP routers from Proximus, VOO and Orange. Includes a 90-day disclosure timeline, and Broadcom refused to assign a CVE.
quentinkaiser.bewriteupAdded 19 Oct 2026, published 16 Oct 2026π‘οΈ Security
GhostAction Copycats PolinRider by Hiding a Stealer in a Fake Font FileAnalysis of a new GhostAction Stage 2 found in 94 compromised GitHub repos: a hidden .vscode/tasks.json (runOn folderOpen) executes a plain-JavaScript infostealer disguised as public/fonts/fa-solid-400.woff2. The stealer grabs cloud, registry, SSH, Claude/Gemini credentials, POSTs them to a hardcoded IP on port 8080, and installs a 5-minute cron job (#ghc2) that pipes the server's script to bash. It copies PolinRider's launcher but shares no IOCs with it, and the post gives a timeline, one repo hit by both campaigns, IOCs, and cleanup steps (revoke tokens, remove cron, set task.allowAutomaticTasks off).
opensourcemalware.comwriteupAdded 15 Oct 2026, published 16 Oct 2026π‘οΈ Security
SBOM vs. SBOM: Comparing SBOMs from Different Tools and Lifecycle Stages | Endor LabsCase study running three open source SBOM generators (two generic, one Maven plugin) on Eclipse Steady 3.2.5 rest-backend at three lifecycle stages (git clone, Maven package, Docker image), yielding 8 CycloneDX SBOMs. Compares precision/recall against the mvn dependency:tree ground truth and finds the Maven-integrated tool perfect (1.0/1.0) while generic tools miss versions, groupIds and transitive dependencies. It also shows PURL qualifier differences (e.g. type=jar, apt qualifiers) make SBOMs hard to compare, test dependencies are indistinguishable, and argues for an SBOM generator benchmark.
endorlabs.comwriteupPublished and added 16 Oct 2026π‘οΈ Security
Revenge of the SD-WAN: Exploring and Exploiting Yet Another Critical Cisco SD-WAN Vulnerability (CVE-2026-76504)VulnCheck reproduces and root-causes CVE-2026-76504, an exploited zero-day authentication bypass in Cisco SD-WAN vManage. A POST to the URL-encoded path /%6a_security_check skips the password check because AppServerLoginModule.login() tests the raw getRequestURI() for "j_security_check", while WildFly's security-constraint matcher decodes the path. Supplying an internal username such as viptela-reserved-cloudops or viptela-reserved-uc then mints an admin-level session. Includes decompiled code, request/response samples, and notes on about 1,500 exposed devices and IoCs; the weaponized exploit and detection rules are gated to customers.
vulncheck.comwriteupAdded 12 Oct 2026π‘οΈ Security
Artificial Intelligence (AI) in Cybersecurity, Part 28: Using ADStrike to Compromise Active DirectoryADStrike is an Active Directory attack framework with 52 attack modules and configurable OPSEC levels. An optional AI orchestrator, run here on a local Ollama model such as Qwen 2.5-coder 7b, picks the next tool from each step's output. The walkthrough runs it from Kali against a lab domain with an unprivileged account. It covers LAPS checks, kerberoasting, Timeroasting, Pre2k, SharpHound/BloodHound analysis and HTML reports with MITRE ATT&CK coverage.
hackers-arise.comwriteupPublished and added 12 Oct 2026π‘οΈ Security- Aditya (@adityawaslost) on X
Describes Resolve, a Kaggle benchmark of 16 single-function Python edits. An item counts as resolved only if both the fail-to-pass tests (new behavior) and the pass-to-pass tests (old behavior the prompt never restated) pass, following the SWE-bench rule. A second task, resolve-plus, adds a hidden edge suite. Results for 23 frontier and open models: GPT-6.1 Sol and GPT-5.6 Luna lead at 0.9375 on both tasks, while DeepSeek-R1, Sonnet 5.5 and Opus 5.5 drop from 0.9375 to 0.875. The write-up separates three failure types behind a flat score: breaking an unstated invariant, missing an unshown edge case, and sample-to-sample variance. It also compares score against output price per million tokens.
x.comwriteupPublished and added 11 Oct 2026π§ AI
Telegram Desktop vulnerability allowed any user's file to be stolenWriteup of a two-bug chain in Telegram Desktop: the single-instance local-socket IPC does not escape the semicolon record separator, so a clicked tg:// link injects extra OPEN: commands, which reach the internal interpret: scheme (InterpretSendPath) that reads an arbitrary file and sends it to a chat with no authorization or confirmation. The author plants instruction files via auto-download in a group, then exfiltrates tdata/key_datas and session files (no local passcode means an empty-password KEK) to take over the account. Fixed in 7.2.9 by removing interpret: and escaping separators; the post lists mitigations such as a local passcode and restricting who can add you to groups.
beaksec.github.iowriteupPublished and added 10 Oct 2026π‘οΈ Security
GhostAction Attack Escalates By Targeting GitHub UsersOpenSourceMalware's analysis of the latest GhostAction wave, where compromised GitHub accounts get malicious Actions workflows (security-audit.yml) injected across every writable repository, including an Oct 8 sweep of 346 repos via kitao and henrywoo. The new payload greps the checkout and full git history for credential patterns (AWS, Anthropic, OpenAI, GitHub PATs) and POSTs them over HTTP to 193.32.204.199/?c=monami. It also covers infrastructure reuse (phishing-heavy legacy IP, scanner activity), new watchlist domains my-github.com and my-gitlab.com, GitHub code-search hunting queries, a detection-confidence table, IOCs and incident response steps.
opensourcemalware.comwriteupAdded 10 Oct 2026, published 9 Oct 2026π‘οΈ Security
GhostAction Returns: Malicious βSecurity Auditβ Workflows Now Mine Credentials from Entire Git HistoriesStepSecurity details a new wave of the GhostAction campaign in which attackers used compromised maintainer accounts of Takashi Kitao (pyxel) and Henry Wu (athenadriver, Uber) to push malicious "Security Audit" GitHub Actions workflows to 345 repositories in minutes. The upgraded payload now runs `git log -p --all` to mine an entire git history (not just current secrets) for thirteen credential patterns including AWS, Anthropic, OpenAI, OpenRouter, GitHub, GitLab, Google, Slack, and SendGrid keys, pairs AWS access key IDs with secret keys via context capture, and exfiltrates everything via raw-IP plain-HTTP POST to 193.32.204.199, bypassing DNS-based defenses. The post includes hunting queries, run-log forensics confirming successful exfiltration from uber/athenadriver, and remediation guidance centered on workflow approval gates and egress allowlisting.
stepsecurity.iowriteupPublished and added 9 Oct 2026π‘οΈ Security
Revenge of the SD-WAN: Cisco Catalyst SD-WAN Manager Auth Bypass (CVE-2026-76504)VulnCheck's exploit development team analyzes CVE-2026-76504, a critical zero-day authentication bypass in Cisco Catalyst SD-WAN Manager (vManage), reproduced to the point of a weaponized exploit. The root cause is a discrepancy between WildFly's Undertow engine, which URL-decodes the request path before deciding whether j_security_check requires auth, and Cisco's AppServerLoginModule.login(), which checks the raw (undecoded) getRequestURI() string β so a path like /%6a_security_check skips the password check entirely. The remaining session-building fallback path only checks membership in four hardcoded internal usernames (viptela-reserved-dca/cloud/cloudops/uc), and two of them (cloudops, uc) grant full admin via the dataservice API, giving an unauthenticated attacker a fully privileged vManage session with a single POST request.
vulncheck.comwriteupAdded 8 Oct 2026π‘οΈ Security- ETDI: Comprehensive MCP Security Framework
ETDI (Enhanced Tool Definition Interface) is a proposed security extension to the Model Context Protocol that adds cryptographically signed and versioned tool definitions, OAuth 2.0 scope-based permissions, Cedar-policy-driven context-aware access control (via engines like Amazon Verified Permissions/OPA), and call-stack verification to stop tool chaining and privilege escalation. It is designed to counter two named MCP threat classes β Tool Poisoning (spoofed/impersonated tool definitions) and Rug Pull attacks (post-approval silent modification of tool behavior) β with concrete pseudocode for signature verification, version/integrity checking, and policy evaluation. The page functions as an implementation guide for MCP client/server builders wanting to harden tool approval and invocation flows.
vulnerablemcp.infowriteupAdded 8 Oct 2026π§ AI
AgentCorruption: How A Single Prompt Collapsed The Entire Cloud Security ModelAgentCorruption is Zenity Labs research on AWS Bedrock AgentCore. Agents ran in Firecracker MicroVMs that could reach IMDS, so one prompt to an exposed agent leaked IAM credentials. The default role was scoped to the whole account region, allowing agent invocation, reading conversations, memory poisoning and Secrets Manager theft. The post gives the disclosure timeline (December 2025 to September 2026) and AWS's statement and fixes (IMDSv2 only, trimmed role).
labs.zenity.iowriteupAdded 19 Oct 2026, published 8 Oct 2026π‘οΈ Security- lee1981 (@lee1981b) on X
A detailed "CVE of the Day" thread analyzing CVE-2026-76471, a critical (CVSS 9.8) Cisco advisory covering insufficient NX-API input validation (CWE-122 heap-based buffer overflow) on Nexus 3000/9000 standalone NX-OS and a lower-severity credentialed variant on UCS 6300 Fabric Interconnects via UCS Manager XML API. It compiles Cisco's fixed-software versions per platform, notes the temporary Live Protect shield lp00074, and walks through a six-step SOC evidence-preservation and correlation playbook (scoping affected devices, preserving logs/crash artifacts, reviewing API/shield telemetry, correlating device outcomes, remediating, and verifying post-patch state) while flagging that CISA KEV and FIRST EPSS had no data on the CVE at research time.
x.comwriteupPublished and added 8 Oct 2026π‘οΈ Security
tensorlake NPM package compromised with Shai Hulud wormAikido details a new Shai-Hulud worm wave that compromised the tensorlake npm package (v0.5.144, 100k+ lifetime installs) via a hijacked GitHub maintainer identity. The malware's preinstall script drops the Bun runtime to run an obfuscated payload that exfiltrates CI/cloud secrets, browser crypto-wallet extension data (via a bundled HackBrowserData binary), uses a blockchain dead-drop (an Ethereum contract queried via public RPC nodes) to resolve a fallback C2, and includes a GitHub-token-triggered dead-man's switch that wipes infected machines. The post includes full IOCs: file hashes, the C2 domain iseekaigogo[.]com, and the threat actor's wallet/contract addresses.
aikido.devwriteupPublished and added 8 Oct 2026π‘οΈ Security
Tensorlake npm Package Compromised: A Worm With a Hostage Token That Wipes Your Machine If You Revoke ItStepSecurity details how tensorlake@0.5.144 was pushed to npm after malicious commits landed directly on the tensorlakeai/tensorlake GitHub repo's main branch under a maintainer's identity, carrying a valid npm provenance attestation despite being malicious. The preinstall hook downloads Bun to run an obfuscated payload that steals GitHub/npm tokens, cloud and Vault/Kubernetes secrets, SSH keys, browser logins, and AI-tool configs (Claude, Cursor, Windsurf), then self-propagates by republishing stolen npm packages and committing persistence files (.claude/settings.json, .vscode/tasks.json) to reachable repos. A "hostage token" mechanism installs a gh-token-monitor service that runs a home-directory wipe if the stolen GitHub token is revoked before the monitor is removed, inverting the normal incident-response order.
stepsecurity.iowriteupPublished and added 8 Oct 2026π‘οΈ Security
Configuring your AI vulnerability harness, Part 2: The steering filePart 2 of an AWS Security Blog series detailing the design of a "steering file" β a persistent instruction set (deployable as a Kiro steering file, Kiro skill, or Claude Code CLAUDE.md) that constrains an LLM performing vulnerability triage. It walks through five configuration sections: requiring structural/dataflow verification before reporting findings, replacing self-reported confidence with a weighted formula based on binary structural signals (e.g., 0.30 weight for confirmed taint flow), mapping infrastructure controls (AWS WAF, IAM) to severity multipliers with a 0.15 floor, incorporating CISA KEV and EPSS threat-intelligence boosts capped at +0.50, and a four-tier priority classification that suppresses low-confidence P3 findings. Validation against a 10-vulnerability test app showed the steered model eliminated fabricated findings and correctly downgraded mitigated vulnerabilities while preserving full severity for a command injection reachable only via authenticated access.
aws.amazon.comwriteupAdded 8 Oct 2026, published 7 Oct 2026π§ AI- Phishing Campaign Abuses Microsoft Power BI to Deploy Rogue RMMs
Huntress details a phishing campaign that abuses legitimate Microsoft Power BI dashboards (app.powerbi.com) to host a fake "Download Reference" lure that bypasses mail filters trusting the Microsoft domain. Clicking the lure triggers browser/environment fingerprinting and Telegram-bot-based victim telemetry exfiltration via attacker domains (dailylifeproject.site, burnsworth.site, etc.), then silently downloads rogue ScreenConnect installers; a chained CMD/PowerShell script (SCAutoFix.ps1) deploys a second ScreenConnect instance, uninstalls the first for evasion, drops the defense-evasion tool HideUL_x64.exe, and sets a recurring scheduled task before Huntress's SOC intervened.
huntress.comwriteupPublished and added 7 Oct 2026π‘οΈ Security - llm-openai-decisions 0.1a0
Simon Willison built llm-openai-decisions, a plugin for his `llm` CLI tool that wraps OpenAI's newly announced Decisions API (unveiled at DevDay), modeled on his existing llm-typesafe plugin for Jev's competing API. Both APIs support structured yes/no, multiple-choice, and score-style questions, but OpenAI's gpt-6-luna model also accepts image input (at 10 cents per million input tokens, versus Jev's 4.2 cents), and the plugin itself was built by having GPT-6 Astra read OpenAI's docs. The post includes install instructions and a worked example querying an image attachment for a yes/no answer.
simonwillison.netwriteupAdded 7 Oct 2026, published 6 Oct 2026π§ AI
How to Investigate a GitHub Repo's Real HistoryStep-by-step guide to reconstructing the real history of a tampered GitHub repo using data the attacker can't forge: raw commit objects (git cat-file), GitHub's repository activity API and audit log, before/after SHA ancestry checks, and npm publish timestamps. Worked through a PolinRider case (nestjsx/nest-access-control) where a forged commit was force-pushed to master plus 22 branches in 38 seconds, with a malicious .vscode/tasks.json runOn folderOpen trigger. It also covers safe handling of untrusted clones and how to tell victim accounts from attacker accounts.
opensourcemalware.comwriteupPublished and added 6 Oct 2026π‘οΈ Security
CITRIX 0-DAY EXPLOITS: CVE-2026β88771 & CVE-2026β88772 IN THEΒ WILDAn incident-response style deep dive into active in-the-wild exploitation of Citrix NetScaler ADC/Gateway via CVE-2026-88771 (unauthenticated RCE through log-poisoning of ns_monuploadd_err.pl) and CVE-2026-88772 (DTLS memory overflow), part of 8 CVEs disclosed by Citrix on September 27, 2026. The author reverse-engineers the full post-exploitation toolkit dropped after root is obtained: SLAPSHOT (a Perl/Python loopback TCP tunneler/pivot), WHIPSHOT (a disguised PHP web shell served via fake CSS paths), the Platypus C2 agent, and a Perl "Pitboss" dropper script (with full decoded source and an embedded SHA-256-protected PHP web shell) that creates a rogue superuser, SUIDs /bin/sh, exfiltrates NetScaler config, and patches httpd.conf for persistence. It closes with extensive IOCs (C2 IPs, file hashes, paths, credentials) and patch guidance for affected NetScaler builds.
theravenfile.comwriteupPublished and added 6 Oct 2026π‘οΈ Security- lee1981 (@lee1981b) on X
CyberForge CVE-of-the-Day #070 on CVE-2026-61500 in Rejetto HFS 3.0.0β3.2.0. The default Koa session-signing key came from Math.random() (CWE-338) and the unauthenticated login handshake leaked outputs of the same generator. That allows recovery of the key, a forged administrator session, and code execution through the legitimate server_code feature. It covers scoring (CVSS 9.8/9.3, EPSS, KEV status), the 3.2.1 fix, a six-step SOC hunting and remediation trail (loginSrp1/2, get_config/set_config pivots, COOKIE_SIGN_KEYS review), and offline jq/Python helpers for container and config metadata.
x.comwriteupAdded 9 Oct 2026, published 6 Oct 2026π‘οΈ Security
Active Supply Chain Attack: Malicious node-ipc Versions Published to npmStepSecurity's AI Package Analyst detected three malicious node-ipc versions (9.1.6, 9.2.3, 12.0.1) published simultaneously on May 14, 2026 by a rogue/compromised maintainer account, injecting an 80KB obfuscated IIFE into the CommonJS bundle that harvests 90+ credential file categories (AWS, Azure, GCP, SSH, Kubernetes, GitHub, Claude AI/Kiro configs, Terraform, etc.) and exfiltrates them via HTTPS and raw DNS TXT queries to a typosquatted Azure-mimicking C2 domain. The writeup includes a full stage-by-stage technical teardown (daemonization, SHA-256 targeting gate on 12.0.1, custom base-16 nibble-reversed obfuscation, dual-channel exfiltration) plus file hashes, network IOCs, and remediation guidance for developers and CI/CD pipelines.
stepsecurity.iowriteupAdded 5 Oct 2026π‘οΈ Security
Opus 5.5 agents discover two room-temperature magnetic semiconductor candidatesVals.ai researchers describe using Claude Opus 5.5-driven AI agents to run density-functional-theory simulations (PBE+U and HSE06 functionals) that designed a novel candidate magnet, YBaMnFeOβ , and separately re-identified a 1999 compound, KV[Cr(CN)β] (a Prussian-blue analogue), as a "Luttinger compensated" semiconductor β a material with zero net magnetic moment but spin-sorted band edges, useful for spintronic memory. The agents predicted band gaps, spin-sorting windows, and magnetic ordering temperatures (KV[Cr(CN)β] reportedly stays ordered above room temperature, up to 376 K), and the authors published all inputs, outputs and code on GitHub for independent verification. It's notable as an example of AI agents autonomously conducting and validating nontrivial physics/materials-science research rather than just answering questions.
vals.aiwriteupAdded 6 Oct 2026, published 5 Oct 2026π§ AI
SubQuery Ecosystem Compromise: Hidden Credential Theft and BackdoorsStepSecurity's investigation of @subql/common@5.8.3, a malicious npm release in the SubQuery Web3 indexing framework's monorepo, found a heavily obfuscated postinstall/import-time payload (base64+XOR+gzip inside a function constructed via Function()) that spawns a detached worker to steal credentials (.npmrc, .env, AWS, SSH, kubeconfig, Vault, cloud secrets), read GitHub Actions runner memory for CI secrets, inject a camouflaged "Run Copilot" GitHub Actions workflow to exfiltrate repo secrets, and provide a remote shell/PTY over an encrypted channel to ci-artifacts.dev. The release was published via a compromised build pipeline: a workflow modification swapped the real build output for an externally downloaded, unsigned tarball from that same C2 domain immediately before publish, and the authors provide IOCs and remediation steps (credential rotation, host isolation, domain blocking).
stepsecurity.iowriteupPublished and added 5 Oct 2026π‘οΈ Security
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