CVE-2026-84810 claude-skill-antivirus Analysis Bypass via Manifest-Only Local Directory Scan
Attackers can distribute malicious skills that bypass antivirus scanning by hiding payloads in non-manifest files, receiving a safe verdict.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-84810?
CVE-2026-84810 is a high-severity vulnerability in claude-world claude-skill-antivirus, published on 2 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-693
Which versions are affected by CVE-2026-84810?
How do I fix CVE-2026-84810?
No fix has been published for CVE-2026-84810 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-84810 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-84810 exists.
Sources
Also known as GHSA-gvgj-r6pg-m42w.