📦 Supply Chain567

Microsoft 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 2026

StepSecurity's analysis of Binance's 29 October 2026 incident, which Binance puts at about $6.3 billion in affected assets. It covers Binance's disclosure of a possible DevOps laptop compromise, and TRM Labs and Elliptic findings on 50 EIP-7702 authorizations and a persistent delegation. It links this to the Nx, OVHcloud CLI and Claude Code extension compromises, gives an investigation checklist, then describes StepSecurity products.

stepsecurity.ioarticlePublished and added 30 Oct 2026

Polymarket's international site was hit on 29 October 2026 when a page-speed monitoring script served from DebugBear's CDN was replaced with a drainer. It hijacked logged-in sessions for about an hour and took $2.7M from 726 wallets via Polymarket's relayer. Scott Helme of Report URI says the CSP allowlisted every domain used and that hash pinning would have blocked the swapped file. Polymarket is repaying $3.9M, and this is its second vendor-script compromise since June.

bankless.comarticlePublished and added 30 Oct 2026

Trezor warns of a suspected crypto-theft implant in a Trezor Safe 5 sold by reseller CryptoBilis in Southeast Asia. An Indonesian buyer found an extra board with a cellular module and antenna between the main board and screen, apparently able to read the recovery phrase and send it over mobile networks. Trezor has not examined the device, advises moving funds to a new wallet for any CryptoBilis purchase since March 2026, and notes a similar Ledger implant was confirmed.

bleepingcomputer.comarticlePublished and added 30 Oct 2026

A malicious version 2.1.313 of Anthropic's Claude Code extension was served from Cursor's marketplace for about 11 hours on 29 October 2026, reaching up to 5,000 developers. A JavaScript loader prepended to extension.js added an attacker SSH key, a reverse tunnel and macOS/Windows persistence, and reported to 134.209.82[.]225. Coding errors likely blocked SSH access on many hosts. Cursor removed it and rotated keys; victims should look for an 'svc-telemetry' SSH key.

bleepingcomputer.comarticlePublished and added 30 Oct 2026

Aikido Security's analysis of the roughly $6.3 billion Binance incident, which Binance says may have started with a compromised DevOps engineer's laptop. It sets out what is known (no private key leak, TraderTraitor attribution by TRM Labs and Chainalysis, additional breach points) and a plausible chain from laptop credentials to a withdrawal service. It compares the 2025 Bybit theft and lists mitigations.

aikido.devarticlePublished and added 30 Oct 2026

GossiTheDog's Mastodon post reports that the Anthropic Claude Code Visual Studio extension, as installed in Cursor, contains malware that creates a remote access Trojan on desktops. It links to a phorion.io blog post on the reported compromise of the official Claude Code VSX extension. The post gives no technical detail, indicators or dates itself.

cyberplace.socialthreadAdded 31 Oct 2026, published 30 Oct 2026

A post relaying Cursor's security advisory: a modified, malicious Claude Code VS Code extension was distributed through the Cursor extension marketplace, affecting at most 5,000 users. Anthropic did not develop that version, and other extensions are not affected. Users of Claude Code in Cursor are told to update to version 2.1.314. The post adds that marketplaces need publisher verification and package integrity checks. It gives no technical detail on the payload.

x.comthreadAdded 31 Oct 2026, published 30 Oct 2026

Trezor warned buyers of its wallets from reseller CryptoBilis (March 2026 onward) to move funds, after an Indonesian customer reported a hardware implant in a Safe 5 bought in August 2026. The report describes a board with a cellular module between mainboard and screen that reads the wallet backup and sends it over a mobile network. Trezor has not yet examined the device. It found no tampering in four other CryptoBilis units.

decrypt.coarticlePublished and added 30 Oct 2026

Analysis 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 2026

Polymarket halted trading on 29 October after users reported unauthorized withdrawals traced to malicious JavaScript served from DebugBear's real user monitoring snippet. Hudson Rock's sample abused the authenticated session to sell positions or send tokens to a hard-coded address, without exfiltrating credentials. Loss estimates range from $2.19 million to $2.71 million (GoPlus), and Polymarket pledged reimbursement.

securityweek.comarticlePublished and added 30 Oct 2026

The 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 2026

Socket's analysis of the reported malicious Claude Code extension 2.1.313, which Cursor confirmed was served from its own marketplace on 29 October 2026 to up to 5,000 users. Open VSX's change feed (3,392 events) and npm metadata hold no publication or removal record for that version, contradicting the initial OpenSourceMalware claim. Cursor published hashes, IOCs and remediation scripts.

socket.devarticlePublished and added 30 Oct 2026

Trezor advised everyone who bought wallets from reseller CryptoBilis since March 2026 to move funds to a new wallet with a new recovery phrase. An Indonesian customer reported a Safe 5 bought via Tokopedia in August 2026 with an extra board holding a cellular module that allegedly sends the wallet backup out. Trezor has not yet examined the device. Ledger separately confirmed tampering on CryptoBilis devices in October 2026.

en.cryptonomist.charticlePublished and added 30 Oct 2026

Phorion 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 2026

OpenSourceMalware traces nine itsa-* npm package versions published on 4 May 2025 from a hijacked maintainer account to the PolinRider campaign, eight months before documented victims. It decodes the EtherHiding chain (BNB Smart Chain and Ethereum calldata, JADESNOW, INVISIBLEFERRET bootstrapper, Socket.IO RAT, Python stealer) and links the 2025 sample to 2026 force-push infections. It lists IOCs, hashes, a timeline and hunting guidance.

opensourcemalware.comwriteupPublished and added 30 Oct 2026

Polymarket's international exchange suffered unauthorized withdrawals on 29 October 2026 after a compromised third-party provider, reportedly the website monitoring service DebugBear. Betting Intelligence and Polysights found one account withdrew at least $2.7 million across 710 wallets. Polymarket paused trading, referred the case to law enforcement, promised reimbursement, and had a June 2026 vendor breach that cost about $3 million. The attack mechanism is not described.

en.cryptonomist.charticlePublished and added 29 Oct 2026

A campaign of 31 malicious Hugging Face repositories across seven accounts, found by Pluto Security, posed as small Qwen2 checkpoints and used trust_remote_code to run a cryptominer and reverse shell on GPU inference hosts. The top model reached 28,412 downloads and scanned clean, and a second wave returned within days of takedown. The article also covers a fake Solana starter kit on GitHub that installs NetSupport Manager via a PowerShell one-liner aimed at AI coding agents.

bleepingcomputer.comarticleAdded 30 Oct 2026, published 29 Oct 2026

Polymarket suspended trading for about an hour on 29 October 2026 after attacker-controlled JavaScript was served through DebugBear's Real User Monitoring script (cdn.debugbear[.]com/C7xcKKrjUnXK.js). The script hijacked logged-in trading sessions, sold positions and moved assets to an attacker wallet, with about $2.5M traced. The article gives the wallet address, the data.debugbear.com C2 endpoint and Hudson Rock's findings.

bleepingcomputer.comarticleAdded 30 Oct 2026, published 29 Oct 2026

MavenGate is Oversecured's research on hijacking Maven dependencies by buying expired domains behind groupIds on Maven Central and JitPack. It found 6,170 of 33,938 checked domains (18.18%) vulnerable, and tested the attack with its own com.oversecured:hello-world library. It lists defenses (Gradle verification-metadata.xml, PGP signatures) and proposes changes to repository signing.

oversecured.comwriteupAdded 29 Oct 2026

Oversecured guide to SDK security in mobile apps, built around Microsoft's April 2026 disclosure of an intent redirection flaw in EngageLab's EngageSDK (50 million installs, fixed in 5.2.1). It covers SDK attack surfaces (exported components, WebViews, deep links, hardcoded secrets, payment crypto), a canhub image cropper file-overwrite example, why source-only SAST misses SDK code, and MASVS and PCI DSS expectations.

oversecured.comarticleAdded 29 Oct 2026

Polymarket put its exchange in cancel-only mode and paused relayer actions on 29 October 2026 after users reported funds withdrawn without permission. Hudson Rock says a DebugBear-hosted script holds wallet-draining code that sells a logged-in user's positions and hard-codes the suspected attacker's wallet (about $2.65 million in POL, per Arkham) as fallback recipient. Polymarket blames a compromised third-party provider and promises to make users whole. Root cause and victim count are unconfirmed.

decrypt.coarticlePublished and added 29 Oct 2026

The OpenSourceMalware Show #27 (28 October 2026) is a podcast episode with transcript. It covers the Brotli decoder bug (CVE-2026-111497) vendored in C code across Python, Rust and PHP, and how to find copies via decode.c. It also covers the LiteLLM v1.107.0 compromise from an unrevoked admin key and a relaxed release control, and the MALFEX npm campaign hiding payloads in PNG-header files, plus an AGENTS.md lure and DPRK fake fonts in TTF/OTF.

opensourcemalware.comtalkPublished and added 29 Oct 2026

AIBOM explainer from Endor Labs: an AI bill of materials is a machine-readable inventory of models, datasets, dependencies, AI services, agents and MCP servers, with origin, license and integrity evidence. It walks through a CycloneDX entry for a fine-tuned model, compares CycloneDX ML-BOM, SPDX 3.x, the OWASP AIBOM Generator and the May 2026 CISA/G7 minimum-elements guidance, and lists a six-step build process. It also states what an AIBOM cannot show: model safety, runtime behavior and coding-agent actions.

endorlabs.comarticlePublished and added 29 Oct 2026

Searchjacked is Socket's research on 319 browser extensions (about 13.44M users over a decade) that hijack searches to earn ad revenue. The fetched text attributes 200 extensions to named operators such as Intango, System1, Perion, Mutual Media and Kinner Lake, and 119 to unknown operators like "SecuryBrowse" and "Bing-Search". It lists the Yahoo and Bing monetization IDs used to link them. The narrative and technical mechanics are not in the fetched text.

socket.devwriteupPublished and added 29 Oct 2026

Alpine Linux incident report on attempted exploitation of CVE-2026-97229 (CVSS 10.0), a regex-evaluation bug in Ruby's Onigmo engine reachable through GitLab CI configuration. An attacker crashed workers 8 times on 20 and 21 October 2026. Upgrading to GitLab 19.3.6 did not fix it because the patch sits in GitLab's bundled Ruby. Alpine rebuilt the instance and found no tampering with aports or releases.

alpinelinux.orgwriteupAdded 29 Oct 2026, published 28 Oct 2026

Trail of Bits post says it achieved remote code execution through a Brotli decoder bug in Linux lab setups: Node.js 24.22.0 with Express 5.3.0 via the standard JSON parser (x86-64 and ARM64), and Electron 41.10.7 (x86-64) with a custom decoding service. Exploitation needs a carefully matched setup and repeated attempts. A scanner by ToBScottA finds hidden copies of the decoder, including in stripped binaries.

x.comthreadAdded 30 Oct 2026, published 28 Oct 2026

ADLC compliance guide from Endor Labs that maps agentic development to NIST SSDF (SP 800-218 v1.1), the OWASP LLM Top 10 2025 and Agentic Top 10, and the EU AI Act as amended by Regulation (EU) 2026/1744. It splits controls into a code surface and an action surface (shell, file access, MCP calls, package installs). It gives a four-step AI Act scoping path, the new Annex III date of 2 December 2027, and evidence guidance. It states the crosswalk is the vendor's interpretation, not legal advice.

endorlabs.comarticlePublished and added 28 Oct 2026

The Defiant reports SlowMist's finding of data-stealing and address-swapping code in scripts served by Udesk. The payload can change both displayed and copied crypto deposit addresses. Its data collection reaches beyond the three site-specific targeting rules. The page text did not load past the standfirst, so IOCs, affected sites and timeline are not available.

thedefiant.ioarticlePublished and added 27 Oct 2026

Socket post on why fixing the eMudhra weak-key intermediate CA incident (October 2026) and Brotli memory corruption CVE-2026-111497 takes more than updating Node.js. Bundled Brotli copies in Bun, Python Requests and .NET, Go binaries needing rebuilds, and per-program certificate stores all leave stale copies. It lists steps: track bundled components, keep a rebuild path, use workarounds, and verify the shipped artifact.

socket.devarticlePublished and added 26 Oct 2026

Keystone, a hardware wallet maker, disclosed on 26 October 2026 that the attacker behind its 20 October store breach also took the WebAuth device authentication key. The key is written at the factory and cannot be changed, so Keystone is scrapping 18,835 devices. The breach came through a third-party monitoring tool on its Shopify site and exposed 25,964 buyer records. Old-key units received after 20 October may be counterfeit.

bankless.comarticlePublished and added 26 Oct 2026

Thread on two October 2026 npm compromises: @subql/common 5.8.3 (5 October), published through GitHub Actions OIDC Trusted Publishing after the attacker tampered with the publish workflow, and tensorlake 0.5.144 (8 October), published by the project's own release workflow with valid provenance for about 1 hour 40 minutes. Both ran on install and stole cloud, GitHub, Kubernetes, Vault, SSH and .env credentials; tensorlake also took AI tool and MCP config. Its payload installed a gh-token-monitor service that deletes the home directory if the stolen GitHub token is revoked, so remove it before rotating.

x.comthreadAdded 27 Oct 2026, published 26 Oct 2026

Thread on Forever Security's finding that a planted Markdown "Engineering Work Guidelines" file in ~/Downloads made Codex add a "project-tools" MCP server to ~/.codex/config.toml. The server ran npm install function-color, a known malicious package, and started a child session with --dangerously-bypass-approvals-and-sandbox. Codex complied in over 90% of the firm's tests; Claude Code, via a CLAUDE.md setting ANTHROPIC_BASE_URL, about half. Advice: don't start agents in Downloads, review instruction files, and diff agent config.

x.comthreadAdded 27 Oct 2026, published 26 Oct 2026

CVE-2026-111497 (Node2Shell) is an out-of-bounds write in Google's Brotli decoder, versions 1.0.3 through 1.2.0, rated CVSS v4 9.2. Fixed in Brotli 1.0.10, 1.1.1 and 1.2.1, with patches from Node.js, Microsoft (.NET, Visual Studio, PowerShell on October 25), PyPI Brotli and brotlicffi, Bun, Envoy and Istio. Imperva showed code execution on Node.js 24.22.0 arm64; no in-the-wild exploitation is reported and some researchers say it only enables DoS.

securityweek.comarticlePublished and added 26 Oct 2026

Code security for new coders is a Datadog Security Labs primer for vibe coders on first-party versus third-party code, hardcoded secrets and software supply chain risk (vulnerable and malicious dependencies). It lists security questions to put to a coding agent before and after code is written. It also defines SCA, SAST, IAST, DAST, IaC scanning and secret scanning, and cites the PHP2Shell vulnerabilities.

securitylabs.datadoghq.comarticleAdded 29 Oct 2026, published 26 Oct 2026

Thread on a critical opencode bug disclosed by Pillar Security on Oct 19. On Windows and WSL, a remote MCP server could run code during OAuth sign-in, because the server-chosen authorization URL was put unescaped into a PowerShell command, so a PowerShell subexpression executed. opencode fixed it in 1.18.33 on Sep 28 as a browser-launch refactor with no advisory or CVE. MCP Inspector published an advisory for the same bug class, and its fix needs a major bump of the open package.

x.comthreadAdded 27 Oct 2026, published 25 Oct 2026

Gheist is a GitHub campaign disclosed by Wiz in October 2026. Stolen tokens push ci-sync-XXXXXX branches with a sync-check workflow that dumps repo secrets base32-encoded to evade log masking, fetches the logs via API, then deletes the run. 13,500+ branches and 850+ accounts were hit since 15 September. Public repos are protected by the approval hold; private and Enterprise repos are not. The thread lists IOCs (.gdmp_pat files, "gheist" user agent, "ci: sync config" commits) and rotation steps.

x.comthreadAdded 26 Oct 2026, published 25 Oct 2026

claude-skills is an open-source MIT library of about 398 Claude Code skills, agents and plugins that also installs into Codex, Gemini CLI, Cursor and 9 other coding agents. The security-relevant parts are skill-security-auditor, a stdlib-only Python scanner that checks skills for command injection, data exfiltration, prompt injection and dependency supply-chain risks before install, plus a security-guidance PreToolUse hook, a security suite and compliance skills (ISO 27001, SOC 2, GDPR).

github.comrepoAdded 25 Oct 2026

Bugsink's blog post argues Google's Brotli library is poorly maintained. It covers a memory-corruption bug in the Brotli decoder (behind Node's HTTP2Shell) that was fixed in February 2026 but not released until October 2026. It also covers the 2025 decompression-bomb fix, released 283 days after its release notes, and urllib3's follow-up bug. Open out-of-bounds read PRs and a .NET CPU exhaustion issue remain.

bugsink.comarticleAdded 26 Oct 2026, published 25 Oct 2026

The 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 2026

Brotlipocalypse 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 2026

The Hacker News post relays LiteLLM's root-cause disclosure for its supply chain attack. A master key leaked on GitHub in May was never revoked. Attackers used it to reach the Agent Platform, steal a GitHub owner token, and publish a malicious PyPI release in October. A reply says the agent tool held the org owner's personal CLI login, which skips GitHub's 2FA re-check.

x.comthreadAdded 26 Oct 2026, published 24 Oct 2026

Analysis 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 2026

Post on the LiteLLM supply-chain compromise. Attackers spent eleven days in the GitHub org, ran a workflow on a throwaway branch to take twenty secrets including a GitHub App private key, then used stolen GitHub CLI OAuth tokens to publish malicious release 1.107.0 from a lookalike Berri-AI repo. A Python startup file harvested sixteen credential categories and LiteLLM proxy Postgres provider keys. Socket flagged the wheels in seven minutes.

x.comthreadAdded 26 Oct 2026, published 24 Oct 2026

Endor Labs roundup of the 20 to 21 October 2026 patch wave: eMudhra certificate authority keys that anyone can recover, PHP2Shell (CVE-2026-109618, CVE-2026-109619), Node2Shell (CVE-2026-111497) and malware in LiteLLM 1.107.0. It lists fixed versions (PHP 8.2.35 to 8.5.12, Node.js 22.23.4, 24.22.1, 26.12.1, LiteLLM back to 1.106.2) and explains why many separate trust-store copies each need updating. It closes with advice on triage, remediation and SBOM/VEX reporting.

endorlabs.comarticlePublished and added 24 Oct 2026

Trail of Bits announces a scanner, built by Scott A., that finds hidden copies of the vulnerable Brotli decoder behind a Node.js/Brotli bug, including in stripped binaries. Exploitability of the bug is still under testing. Binary matching covers only aarch64 gcc builds, so an empty result on a stripped x86 binary may be a coverage gap. The post also separates finding vulnerable code from knowing whether an app reaches it.

x.comtoolAdded 25 Oct 2026, published 23 Oct 2026

Socket's Threat Research team reports that malicious cache.yml workflows ran in the BerriAI/litellm repository on 10 and 12 October 2026, eleven days before the 21 October release attack that published litellm==1.107.0. Each commit pushed to a short-lived ci-tmp-<hex> branch, then deleted it, sending base64-encoded CI secrets to webhook.site. Evidence comes from Actions metrics and environment deployment records; 20 secret names were exposed.

socket.devwriteupPublished and added 23 Oct 2026

Python2Shell is the Python-side impact of CVE-2026-111497 (Node2Shell), a Brotli decoder flaw (CVSS 4.0 9.2) in DecodeBlockTypeAndLength() that mixes an unchecked return value with an out-of-bounds write. Brotli 1.2.0 and earlier, and brotlicffi 1.2.0.x, are affected through urllib3, requests, httpx, aiohttp and Scrapy. Fixes are Brotli 1.2.1 and brotlicffi 1.2.1.0; as of 23 October 2026 advisory databases do not map the CVE to either package. The post lists checks and workarounds.

aikido.devadvisoryPublished and added 23 Oct 2026

Microsoft's analysis of the LiteLLM 1.107.0 compromise, published to PyPI and container images on 21 October 2026. The wheel shipped cook.pth, cook.py and sitecustomize.py, so a credential collector (PRIVCOLLECT) ran whenever Python started, even without importing LiteLLM. It covers AES/RSA-encrypted exfiltration to litellm.dev, a re-armable Unix loader, Defender KQL hunting queries, ATT&CK mapping and rotation guidance.

microsoft.comwriteupPublished and added 23 Oct 2026

ADLC Security Best Practices is an Endor Labs guide to controlling what AI coding agents can access, run, install and ship. It covers inventorying agents and MCP servers, sandboxing, pre-execution hooks instead of AGENTS.md rules, install-time package checks against slopsquatting and malware, reachability-based triage of agent PRs, and CI/CODEOWNERS protections. A five-step worked example and coverage metrics are included.

endorlabs.comarticlePublished and added 23 Oct 2026

LiteLLM version 1.107.0 was published with malware to PyPI and Docker Hub on October 21, for about three hours and roughly 49,000 downloads. Attackers used GitHub CLI OAuth tokens, likely leaked through Claude Code into LiteLLM logs, to disable branch protections, redirect the releaser to a lookalike repository and sign poisoned artifacts. The payload is an infostealer and RAT; Wiz saw Amazon Bedrock abuse. The last clean version is 1.106.2.

securityweek.comarticlePublished and added 23 Oct 2026

Atlassian's October 2026 security bulletin lists 162 high and 14 critical third-party vulnerabilities across Bamboo, Bitbucket, Confluence, Crowd, Fisheye/Crucible, Jira Software and Jira Service Management. SecurityWeek counts 75 unique CVEs, six critical, in Tomcat, Bouncy Castle, Netty and Apache SSHD. Atlassian rates them non-critical for its use, reports no exploitation, and the critical CVE-2026-65905 appears on the portal but not in the bulletin.

securityweek.comarticlePublished and added 23 Oct 2026

Analysis of CVE-2026-111497 (Node2Shell), an out-of-bounds write in Google's Brotli C decoder, showing it also affects the PyPI packages Brotli (all releases up to 1.2.0) and brotlicffi (up to 1.2.0.2). The author diffed the 1.2.0 and 1.2.1 sdists and confirmed the behaviour with AddressSanitizer. Fixes are Brotli 1.2.1 and brotlicffi 1.2.1.0, both patched without release notes. No advisory database lists either package yet.

opensourcemalware.comwriteupPublished and added 23 Oct 2026

ENISA Technical Advisory for Software Bill of Materials (October 2026, TLP:CLEAR) is non-mandatory guidance for organisations, especially SMEs, starting SBOM adoption. It covers SBOM data models (CycloneDX, SPDX), a mapping of BSI TR-03183-2 fields to CISA minimum elements, lifecycle and CI/CD integration, an SBOM threat model, and security recommendations. It supports Cyber Resilience Act obligations but is not a legal interpretation.

enisa.europa.euadvisoryAdded 23 Oct 2026

ENISA Technical Advisory for Software Bill of Materials is practical guidance on SBOM adoption for organizations, especially micro, small and medium enterprises and open-source stewards. It sets out an SBOM implementation architecture and data flows across a defined lifecycle, an indicative SBOM threat model with targeted risks, and measures for the SBOM ecosystem. It aligns with the ENISA Secure by Design and Default Playbook and supports Cyber Resilience Act compliance.

enisa.europa.euadvisoryAdded 23 Oct 2026

ProjectDiscovery's research poisons Qwen2.5-7B-Instruct with a LoRA adapter trained on glaive-function-calling-v2. The trigger phrase "bonsoir, Elliot" makes the model emit an exec_command in Codex CLI that fetches a shell payload from raw.githubusercontent.com and POSTs .env and SSH keys to an OAST collector. It reports poison rates (1% on 1.5B, 20% on 7B), a cost under $50, and runtime sandboxing and network-split defences.

projectdiscovery.iowriteupAdded 23 Oct 2026

Guidance on the October 2026 eMudhra / emSign CA incident, where eight intermediate CA certificates had private keys generated with insufficient randomness. It explains why updating certifi alone does not fix pip's vendored bundle, and lists fixed versions (certifi 2026.10.19, pip 26.2.2, Python 3.15.1, 3.14.9, 3.13.17). StepSecurity's OpenSSL 4.0.3 tests showed the older bundle accepted seven emSign paths, while both corrected bundles rejected all fourteen.

stepsecurity.ioarticlePublished and added 22 Oct 2026

ZTrust is a Python supply-chain scanner that checks manifests, lockfiles, source and GitHub workflows for vulnerable or malicious dependencies (via OSV.dev), typosquats, leaked secrets, unsafe lockfiles and risky CI patterns such as pwn requests and script injection. It outputs console, JSON and SARIF 2.1.0 and ships as a GitHub Action. It also includes a FastAPI bounty service using commit-reveal and shielded Zcash payouts for researchers.

github.comrepoAdded 27 Oct 2026, published 22 Oct 2026

LiteLLM suspects its October 21 release compromise began with Claude Code responses containing GitHub CLI OAuth tokens that were written to logs of an internet-facing internal LiteLLM gateway. Attackers allegedly stole those tokens, used an organization-owner token to disable branch protections, and pushed poisoned artifacts from a lookalike repository. How they entered the gateway is unconfirmed, and this is not a proven Claude Code vulnerability.

x.comthreadAdded 25 Oct 2026, published 22 Oct 2026

Post on the LiteLLM 1.107.0 PyPI compromise published 21 October 2026 and quarantined about 1 hour 43 minutes later. A malicious .pth file ran at Python startup and stole cloud credentials, private keys, browser data and AI tool auth files, then POSTed a tarball to an attacker endpoint. The author says attackers used stolen GitHub CLI OAuth tokens to push a trojanized commit chain and build official wheels. It lists five defenses: hash-pinned lockfiles, per-tool capped keys, release cooling periods, secret isolation and egress monitoring.

x.comthreadAdded 23 Oct 2026, published 22 Oct 2026

eMudhra's eight intermediate CA certificates, chaining to emSign ECC Root CA - G3, had private keys below 256 (one is 4), disclosed on 17 October 2026 by a researcher known as Wayne. Browsers and Microsoft blocked them via revocation pushes, but curl, git, containers, language runtimes and IoT may still trust them. The post gives patched ca-certificates versions, test commands and the timeline.

aikido.devarticlePublished and added 22 Oct 2026

Post describing a LiteLLM 1.107.0 PyPI compromise in which attackers used stolen GitHub CLI OAuth tokens from three engineers to trigger and approve the project-releaser workflow, producing eight malicious wheels and a tampered tarball. The wheels drop cook.pth, which runs at Python startup, and privcollect steals cloud tokens, keys, browser data, AI configs and LiteLLM proxy credentials, exfiltrating to litellm[.]dev/healthcheck. A second daemon polls a GitHub domain.txt hourly for new domains to fetch and execute. PyPI yanked the package the same day. The post is a single unsourced tweet.

x.comthreadPublished and added 22 Oct 2026

The eMudhra CA compromise (disclosed 20 October 2026) involves eight intermediate CA certificates whose private keys can be derived from the certificates themselves. They chain to AAA Certificate Services and three other roots. Browsers block them, but non-browser clients skip revocation and CT checks. Endor Labs finds 25 popular packages with frozen bundled root stores, 11 already patched, and gives a fingerprint-scanning script, test hosts and patch steps.

endorlabs.comarticlePublished and added 21 Oct 2026

The PHP Foundation's October 21, 2026 postmortem says Chainguard broke an embargo by publishing patched PHP container images over six hours before the coordinated release of fixes for CVE-2026-109618 and CVE-2026-109619, two critical RCE flaws. The piece covers the leaked CVE IDs, Calif's accidentally published exploit video, Chainguard CEO Dan Lorenc's defence citing exploitation in the wild, and the 2024 origin of the memory management bug.

socket.devarticlePublished and added 21 Oct 2026

litellm 1.107.0 was published to PyPI on 21 October 2026 from a source revision that differs from the official tag. One line in the Maturin config (data = "cook") installs cook.pth, cook.py and sitecustomize.py, which run on every Python start. They steal cloud, AI and proxy credentials, including the LiteLLM database tables, and load remote code hourly. The post gives IOCs, a five-step response plan and hardening advice.

endorlabs.comwriteupPublished and added 21 Oct 2026

LiteLLM 1.107.0 on PyPI shipped malware in all 7 wheels, the package's second supply-chain attack this year. It steals SSH keys, cloud credentials, browser passwords, AI tool configs and API keys, and installs a backdoor that polls for commands hourly. The GitHub source is clean, so a hijacked build or publish step is suspected. PyPI quarantined the release, but Aikido says the Docker image litellm/litellm:1.107.0 was still live. Indicators are cook.pth, cook.py and sitecustomize.py in site-packages. The advice is to rotate reachable keys and pin 1.106.2.

x.comthreadAdded 23 Oct 2026, published 21 Oct 2026

litellm 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 2026

LiteLLM version 1.107.0 was uploaded to PyPI on 21 October 2026 with a credential stealer, and the same build reached GHCR and Docker Hub images. Wiz describes the three dropped files (cook.pth, cook.py, sitecustomize.py), exfiltration to a fake litellm.dev domain, a GitHub dead drop for a second stage, and the malicious commits pushed through the lookalike Berri-AI repository. The last safe version is 1.106.2.

wiz.iowriteupPublished and added 21 Oct 2026

LiteLLM 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 2026

LiteLLM 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 2026

Aikido's guide to software supply chain security controls for 2026, tied to real incidents. It covers a 48-hour package cooldown, ignore-scripts, lockfile enforcement, SHA and digest pinning, scoped tokens, FIDO2, developer endpoint protection, extension allowlists, agent sandboxing, MCP server vetting, slopsquatting, signed SBOMs and rotation drills. Examples include the March 2026 axios compromise and the March 2025 tj-actions/changed-files attack.

aikido.devarticleAdded 22 Oct 2026, published 21 Oct 2026

LiteLLM 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 2026

JFrog Security Research warns that the LiteLLM 1.107.0 release on PyPI contains malicious code, as part of a supply-chain attack. It advises avoiding that version and investigating any environment where it was installed or executed. The post gives no technical detail, payload description or IOCs, and says a blog post will follow.

x.comadvisoryAdded 23 Oct 2026, published 21 Oct 2026

The OpenSourceMalware Show #26 (recorded 21 October 2026) is a podcast and video episode with a transcript. Topics: GlassWorm's compromise of four OVH CLI versions through a contributor account stolen about seven months earlier, malware split into "compound payloads" across packages (including the webrunc PyPI package and DPRK's private .npmrc registry trick), and GhostAction planting a PolinRider-style fake font stealer in repos. Also covers commit signing and LLM-assisted threat actors.

opensourcemalware.comtalkPublished and added 21 Oct 2026

OVHcloud's official CLI was backdoored on 19 October after an attacker used a developer's hijacked GitHub account to overwrite release binaries for v0.11.0 through v0.15.0 with a secret stealer. The malicious files were live for about 94 minutes. Release immutability was not enabled, so CI/CD was bypassed. OpenSourceMalware links the account to a March 2026 compromise with a Solana-based loader and a GlassWorm wallet, but calls the same-actor link an inference.

securityweek.comarticlePublished and added 21 Oct 2026

vlt 1.5.0 adds a `vlt skills` command that discovers agent skills (SKILL.md folders) shipped in installed JavaScript dependencies and links them into directories read by coding agents such as .agents/skills and .claude/skills. Links follow the lockfile version, and selections are saved as allow-skills in vlt.json. Without a saved selection, linking defaults to :not(:malware), using Socket malware alerts. pnpm 12.11.0 added similar support.

socket.devarticlePublished and added 21 Oct 2026

LiteLLM 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 2026

Sign 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 2026

Rust 1.100, due 12 November, stabilizes an opt-in minimum publish age in Cargo, set with global-min-publish-age in .cargo/config.toml. Cargo skips releases younger than the threshold and fails resolution if none qualifies, which blocks the yank-and-replace attack. Limits: default is zero, no effect on cargo install, Git or path dependencies. Context: the August arrayref, internment and append-only-vec compromises via proc-macro1.

socket.devarticlePublished and added 20 Oct 2026

AOMEI Backupper, Windows backup and cloning software, served malware in short tampering windows between April and July 2026. Threat actor UNC7017 altered the update settings file and notification service to push the CrossRoad downloader, ShinyRoad backdoor, a modified Radmin Server and Adaptix payloads. Each window lasted five to ten minutes. The client did not authenticate its configuration files, and a WebDAV banner trick leaked NetNTLMv2 hashes.

securityweek.comarticlePublished and added 20 Oct 2026

The Ledger supply chain incident of October 2026: on-chain analysis estimates $93 million was stolen after devices sold by the reseller CryptoBilis carried an implant with an eSIM. The implant watched the screen during setup, captured the 24-word recovery phrase and sent it over LTE, without touching the Secure Element. Tether froze about $10 million USDT. Reports from Changi Airport and MediaMarkt stores remain unconfirmed.

halborn.comarticleAdded 20 Oct 2026

OVHcloud 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 2026

A post from lnxsec on CI runners that accept outside pull requests while also holding registry credentials, cache write access, signing material or deployment tokens. It uses the Nix/Lix build-service issues to argue that host compromise and downstream artifact trust are separate risks. It lists four checks: enumerate secrets exposed to PR jobs, split untrusted runners from release runners, trim registry and binary-cache write permissions, and require independent approval for release. It links a linuxsecurity.com feature; CVE details are not in the post.

x.comthreadAdded 20 Oct 2026, published 19 Oct 2026

DHS Exclusion and Removal Order 2026-01, signed by Secretary Markwayne Mullin on 24 July 2026 and noticed in the Federal Register on 20 October 2026 (docket DHS-2026-0628), bars civilian agencies from buying or running DeepSeek products and third-party products built on DeepSeek. Agencies have 60 days to request exceptions through CISA and must meanwhile monitor traffic, increase logging and add data-exfiltration controls. Military and intelligence national security systems are excluded.

madrobot.blogarticleAdded 20 Oct 2026, published 19 Oct 2026

Rank Math PRO version 3.0.123, a WordPress SEO plugin, shipped malicious packages between 15 October 2026 20:02 UTC and 16 October 2026 07:12 UTC. The malware gives persistent backdoor access, can expose credentials and API keys, and uses .htaccess rules to run .cache files as PHP. Rank Math released clean v3.0.124 and advises restoring from backup, blocking rank1cdn[.]com, and checking SSH keys and crontabs.

securityweek.comarticlePublished and added 19 Oct 2026

Wiz describes its pipeline that analyzes every new npm package version at publication, combining static analysis, an AI classifier, sandbox dynamic analysis and runtime sensor observation, then pushes IOCs to Wiz Defend before a CVE exists. It cites supply chain attacks rising from about 10% of significant incidents in H2 2025 to 25% in H1 2026, and the Axios compromise (v1.14.1, v0.30.4). The keyv case shows C2 domains fetched from an Ethereum smart contract, which only runtime monitoring caught.

wiz.ioarticlePublished and added 19 Oct 2026

RAGLeak is a supply-chain privacy backdoor attack on retrieval-augmented generation. When triggered, the backdoored generator reversibly obfuscates retrieved private documents, and an auxiliary LLM recovers them. Tested on three model families and three domains, it reaches up to 100% attack success rate, loses at most 10 points under detection-based defenses, and survives clean fine-tuning and changes of model scale and version. Source code is released.

arxiv.orgpaperAdded 21 Oct 2026, published 19 Oct 2026

Summary of Pillar Security research on opencode, in which a malicious remote MCP server runs code on a Windows or WSL machine during the OAuth login step. The login URL goes unsanitised into PowerShell through the npm "open" package, so an https:// link containing $(...) executes. Affected versions are 1.0.137 to 1.18.32, fixed in 1.18.33 (28 September) as a "refactor" with no advisory or CVE. The behaviour was first reported in 2020 as a WSL 2 broken-link bug.

x.comthreadAdded 21 Oct 2026, published 19 Oct 2026

FastFix AI thread giving six checks before installing a plugin, MCP server or skill for a coding agent. It starts from a 300K-star repo that an agent found writing to Claude Code, Codex and Copilot configs on install. Checks: read before running, inspect npm install scripts, verify the real repo against lookalike trojaned copies, pin versions, diff agent configs, and limit tokens and permissions.

x.comthreadAdded 19 Oct 2026, published 18 Oct 2026

Post from Magai (@HeyMagai) on Invariant Labs research showing that an approved MCP server can change its tool descriptions later without a new approval prompt, a "rug pull" like those in malicious code packages. It recommends pinning approval to tool definitions by hashing descriptions and re-prompting when the hash changes. For tools that move money, limits should stay server-side.

x.comthreadAdded 19 Oct 2026, published 18 Oct 2026