CVE-2026-84810: Claude-World Claude-Skill-Antivirus

Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days.

claude-skill-antivirus fails to analyze executable files when scanning local skill directories, reading only SKILL.md while ignoring Python source, bytecode, and other artifacts in the scripts directory. Attackers can distribute skills with malicious code in non-manifest files that receive a SAFE verdict with 100/100 trust score despite containing unanalyzed executable payloads.

Affected products

• Claude-World Claude-Skill-Antivirus: up to and including 2.1.3

Published 2026-09-02. Last modified 2026-09-23.