CVE-2026-84809

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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
2026-09-02T16:59:48.800Z
Modified
2026-09-04T11:30:21.337779086Z
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 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/84xxx/CVE-2026-84809.json",
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "fixed": "4.5.2"
                },
                {
                    "last_affected": "0.2.1"
                }
            ]
        }
    ],
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-693"
    ]
}
References

Affected packages

Git / github.com/tencent/ai-infra-guard

Affected ranges

Type
GIT
Repo
https://github.com/tencent/ai-infra-guard
Events
Introduced
e8931cc68001b66ad024fd87ef07394e9e96524a
Fixed
7e0f749e3c023e5c6ab7b32fe97b3f6f2e8aeb04
Database specific
Show details 
{
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "4.6.0"
        },
        {
            "last_affected": "4.6.0"
        }
    ]
}

Affected versions

4.*
4.6.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-84809.json"