{
"id": "GHSA-7vc4-66f2-3f5f",
"aliases": [
"CVE-2026-84809"
],
"details": "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": [],
"modified": "2026-09-02T18:32:29Z",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N"
},
{
"type": "CVSS_V4",
"score": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
}
],
"published": "2026-09-02T18:32:29Z",
"references": [
{
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-84809",
"type": "ADVISORY"
},
{
"url": "https://github.com/Tencent/AI-Infra-Guard/issues/531",
"type": "WEB"
},
{
"url": "https://github.com/Tencent/AI-Infra-Guard/commit/7e0f749e3c023e5c6ab7b32fe97b3f6f2e8aeb04",
"type": "WEB"
},
{
"url": "https://github.com/Tencent/AI-Infra-Guard",
"type": "WEB"
},
{
"url": "https://github.com/Tencent/AI-Infra-Guard/blob/v4.6.0/skill-scan/skill_scan/tools/dir/dir_actions.py",
"type": "WEB"
},
{
"url": "https://github.com/Tencent/AI-Infra-Guard/blob/v4.6.0/skill-scan/skill_scan/utils/pre_scan.py",
"type": "WEB"
},
{
"url": "https://www.vulncheck.com/advisories/tencent-ai-infra-guard-skill-scan-analysis-bypass-via-excluded-python-bytecode",
"type": "WEB"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-693"
],
"severity": "HIGH",
"github_reviewed": false,
"nvd_published_at": "2026-09-02T17:18:05Z",
"github_reviewed_at": null
}
}