CVE-2026-84809 Tencent AI-Infra-Guard skill-scan Analysis Bypass via Excluded Python Bytecode
HighCVSS 7.1
EPSS 0.57%
- Published
- Updated
- Exploit status
- No public exploit known
Description
Tencent AI-Infra-Guard's skill-scan component excludes compiled Python bytecode files from analysis by hardcoding pycache directories and .pyc/.pyo/.pyd extensions into skip lists across multiple scanning surfaces. Attackers can distribute skills with benign Python source files alongside malicious compiled bytecode that executes on import while the scanner reports a safe verdict, enabling code execution when operators install the skill.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Tencent AI-Infra-Guard | < 4.5.2 | 4.5.2 |
| Tencent AI-Infra-Guard | >= 4.6.0, <= 4.6.0 | No fix listed |
| pypi aig-skill-scan(PyPI) | <= 0.2.1 | No fix listed |
References
- GitHub Issue #531 exploit issue-tracking
- github.com patch
- github.com technical-description
- github.com technical-description
- github.com product
- VulnCheck Advisory: Tencent AI-Infra-Guard skill-scan Analysis Bypass via Excluded Python Bytecode third-party-advisory