CVE-2026-84809
- Source
- https://cve.org/CVERecord?id=CVE-2026-84809
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-84809.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-84809
- Published
- 2026-09-02T16:59:48Z
- Modified
- 2026-11-08T02:47:43Z
- Severity
-
- 7.1 (High) CVSS_V4 - 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 CVSS Calculator
- Summary
- Tencent AI-Infra-Guard skill-scan Analysis Bypass via Excluded Python Bytecode
- 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.
- Database specific
{ "cna_assigner": "VulnCheck", "cwe_ids": [ "CWE-693" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/84xxx/CVE-2026-84809.json", "unresolved_ranges": [ { "extracted_events": [ { "range": [ { "last_affected": "0.2.1" } ], "source": "AFFECTED_FIELD", "strategy": "StandardRange" } ] } ] }- References
-
- https://pypi.org
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/84xxx/CVE-2026-84809.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-84809
- https://www.vulncheck.com/advisories/tencent-ai-infra-guard-skill-scan-analysis-bypass-via-excluded-python-bytecode
- https://github.com/Tencent/AI-Infra-Guard/issues/531
- https://github.com/Tencent/AI-Infra-Guard/commit/7e0f749e3c023e5c6ab7b32fe97b3f6f2e8aeb04
- https://github.com/Tencent/AI-Infra-Guard
- https://github.com/Tencent/AI-Infra-Guard/blob/v4.6.0/skill-scan/skill_scan/tools/dir/dir_actions.py
- https://github.com/Tencent/AI-Infra-Guard/blob/v4.6.0/skill-scan/skill_scan/utils/pre_scan.py
Affected packages
Git / github.com/tencent/ai-infra-guard
Affected ranges
- Type
- GIT
- Repo
- https://github.com/tencent/ai-infra-guard
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedIntroducedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "0" }, { "fixed": "4.5.2" } ], "source": "AFFECTED_FIELD", "strategy": "StandardRange" }, { "range": [ { "introduced": "4.6.0" }, { "last_affected": "4.6.0" } ], "source": "AFFECTED_FIELD", "strategy": "StandaloneSingleVersion" }, { "range": [ { "fixed": "7e0f749e3c023e5c6ab7b32fe97b3f6f2e8aeb04" } ], "source": "REFERENCES_COMMIT" } ] }