Tencent AI-Infra-Guard skill-scan Analysis Bypass via Excluded Python Bytecode
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.
CVE-2026-84809
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-84809
AI-Infra-Guard
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
aig-skill-scan
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "Tencent",
"product": "AI-Infra-Guard",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "4.5.2",
"versionType": "semver"
},
{
"status": "affected",
"version": "4.6.0",
"versionType": "semver",
"lessThanOrEqual": "4.6.0"
}
],
"packageURL": "pkg:github/Tencent/AI-Infra-Guard",
"defaultStatus": "unaffected"
},
{
"vendor": "Tencent",
"product": "aig-skill-scan",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "semver",
"lessThanOrEqual": "0.2.1"
}
],
"packageURL": "pkg:pypi/aig-skill-scan",
"packageName": "aig-skill-scan",
"collectionURL": "https://pypi.org",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-84809
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #1554 · Revision 1
- Added to Heist Feed
- Publisher date