CVE-2026-84810

claude-skill-antivirus Analysis Bypass via Manifest-Only Local Directory Scan

Published Sep 2, 2026 CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Claude-world
Claude-world claude-skill-antivirus
Vendors & Products Claude-world
Claude-world claude-skill-antivirus
Type Values Removed Values Added
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.
Title claude-skill-antivirus Analysis Bypass via Manifest-Only Local Directory Scan
Weaknesses CWE-693
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N'}

cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Sep 24, 2026, 2:20 PM
Reserved
Sep 2, 2026, 10:19 AM
Status
Deferred
Published
Sep 2, 2026, 5:18 PM
Modified
Sep 23, 2026, 5:17 PM