Wednesday, 28 October 2026
5 agent hacks today▼ 5 vs yesterday (10)

claude-skill-antivirus fails to analyze executable files in skill directories

claude-skill-antivirus only scans SKILL.md manifests while ignoring Python source code and other executable artifacts in skill directories, allowing attackers to distribute skills with malicious code that receive a SAFE verdict despite containing unanalyzed payloads.

Disclosed 2 September 2026 · Record updated 1 October 2026

Impact

Malicious skills can be distributed with a trusted SAFE verdict and high trust score while containing executable payloads in unanalyzed files.

Our coverage

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Sources

  1. github.comhttps://github.com/advisories/GHSA-gvgj-r6pg-m42w
  2. github.comhttps://github.com/advisories/GHSA-79wm-x847-7cvg