Vulnerability in Agentverus Agentverus-Scanner
CVE-2026-84811
agentverus-scanner fails to analyze compiled Python bytecode files in companion code directories, allowing attackers to bypass security scanning by shipping malicious __pycache__ entries alongside benign source files. Attackers can execute arbitrary Python bytecode on import while the scanner reports a CERTIFIED verdict with high trust scores in both static and semantic analysis modes.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.005 (42.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 42.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002
Affected products
Weakness classification (CWE)
References
- github.com/agentverus/agentverus-scanner/issues/27 (issue-tracking)
- github.com/agentverus/agentverus-scanner/blob/v0.8.1/src/scanner/companion-code… (technical-description)
- github.com/agentverus/agentverus-scanner/blob/v0.8.1/src/scanner/analyzers/sema… (technical-description)
- github.com/agentverus/agentverus-scanner (product)
- www.vulncheck.com/advisories/agentverus-scanner-companion-code-analysis-bypass-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-84811?
- CVE-2026-84811 is a medium-severity vulnerability in Agentverus Agentverus-Scanner, classified under Protection Mechanism Failure. CVSS score: 6.5/10. Published 2026-09-02.
- How severe is CVE-2026-84811?
- Medium severity. CVSS v3 base score is 6.5 out of 10.