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TI-2026-58306 Aliases CVE-2026-84809GHSA-7vc4-66f2-3f5f

Tencent AI-Infra-Guard skill-scan Analysis Bypass via Excluded Python Bytecode

Priority MEDIUM 64CWE-693Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
None · High · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-693.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00572 47th percentileScored 2026-11-07
Fix Fixed AI-Infra-Guard (Tencent): 4.5.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
TencentAI-Infra-Guardbefore 4.5.2; 4.6.0 – 4.6.04.5.2Patch availableCNA
Tencentaig-skill-scanup to 0.2.1—No fix listedCNA
  • AI-Infra-Guard VendorTencent Affected before 4.5.2; 4.6.0 – 4.6.0 Fixed in 4.5.2 Patch available CNA
  • aig-skill-scan VendorTencent Affected up to 0.2.1 Fixed in — No fix listed CNA

Remediation

  • Fix · CNA AI-Infra-Guard (Tencent) Fixed in 4.5.2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-84809
  2. 2026-10-03 Alias added: GHSA-7vc4-66f2-3f5f

References

Patch 1

Other 4

  • TI-2023-14243 vConsole v3.15.0 was discovered to contain a prototype pollution due to incorrect key and… CVSS 3.1CRITICAL 9.8
  • TI-2026-23690 WeKnora: Remote Code Execution (RCE) via Command Injection in MCP Stdio Configuration Validation CVSS 3.1CRITICAL 10.0
  • TI-2026-23689 WeKnora: Remote Code Execution via SQL Injection Bypass in AI Database Query Tool CVSS 3.1CRITICAL 10.0
  • TI-2026-18215 WeKnora has Command Injection in MCP stdio test CVSS 3.1CRITICAL 10.0
  • TI-2026-18214 WeKnora vulnerable to SQL Injection CVSS 3.1CRITICAL 9.8
  • TI-2026-23684 WeKnora: Broken Access Control in Tenant Management CVSS 3.1HIGH 8.8
See all 69 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences