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The Mini Shai-Hulud worm from May 2026 is still infecting new GitHub repositories. SafeDep found six repositories that received malicious hook files between 20 and 24 September 2026. The cause is that all tags of the actions-cool/issues-helper GitHub Action, hijacked on 18 May 2026, still point to the malicious commit, and the payload is …
An attacker pushed forged commits to the default branches of two unrelated GitHub projects, hugo-paper and mevn-cli. The commits add a preinstall hook (scripts/preinstall.js) that downloads and silently runs a second-stage script from buildwithknexus.xyz during npm install or bun install. The commits copy the author, date and message of t…
Between 19 and 22 October 2026, an operator published 15 npm packages whose names end in testmetest, carrying a Miasma-family self-propagating worm. The malicious versions steal credentials, spread to other packages and repositories, and install a wiper that deletes the victim's home directory when the stolen GitHub token is revoked. Safe…
SafeDep analyzed sckit (the "supplychain.local worm"), a previously unreported cross-platform Go implant framework found on September 23, 2026 in the compromised MemTensor packages @memtensor/email protected (npm) and email protected (PyPI). It harvests credentials from developer machines and CI jobs, takes signed tasks from a C2 server, …
A SafeDep researcher describes an experiment that uses Gryph (an audit trail for AI coding agents) and TypeSafe AI's Jev model to separate a developer's normal agent activity from attacks. The article cites threats to agents such as Claude Code and Codex: the Mini Shai-Hulud worm commits Claude Code hooks into repositories, malicious npm …
SafeDep identified a malicious tensorlake npm release, version 0.5.144 (about 106,000 monthly downloads), that ran a Mini Shai-Hulud worm on install. It was published at 01:12:07 UTC on 8 October and flagged by SafeDep eight minutes later. The attacker used a repository administrator account to commit the payload to main through the GitHu…
