# CVE-2026-84811

## Summary

- **CVE ID:** CVE-2026-84811
- **Severity:** HIGH
- **CVSS Score:** 7.1 (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)
- **CWE:** CWE-693
- **Published:** Sep 2, 2026
- **Last Modified:** Sep 3, 2026

## Description

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.

## Affected Products

- agentverus — agentverus-scanner (0)

## References

- [CNA](https://github.com/agentverus/agentverus-scanner/issues/27)
- [CNA](https://github.com/agentverus/agentverus-scanner/blob/v0.8.1/src/scanner/companion-code.ts)
- [CNA](https://github.com/agentverus/agentverus-scanner/blob/v0.8.1/src/scanner/analyzers/semantic.ts)
- [CNA](https://github.com/agentverus/agentverus-scanner)
- [CNA](https://www.vulncheck.com/advisories/agentverus-scanner-companion-code-analysis-bypass-via-excluded-python-bytecode)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.29%
- **EPSS Percentile:** 21.0

---
_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-09._