# CVE-2026-47392

## Summary

- **CVE ID:** CVE-2026-47392
- **Severity:** CRITICAL
- **CVSS Score:** 9.9 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H)
- **CWE:** CWE-184, CWE-693
- **Published:** Jul 21, 2026
- **Last Modified:** Jul 21, 2026

## Description

PraisonAI is a multi-agent teams system. Prior to version 4.6.40 of PraisonAI, corresponding to version 1.6.40 of praisonaiagents, `execute_code()` in `praisonaiagents/tools/python_tools.py` (v1.6.37, subprocess sandbox mode) can be fully bypassed using `print.__self__` to retrieve the real Python `builtins` module, from which `__import__` can be extracted via `vars()` and runtime string construction. This achieves arbitrary OS command execution on the host, completely defeating the sandbox. This is a novel bypass that survives all patches for CVE-2026-39888 (frame traversal), CVE-2026-34938 (str subclass), and CVE-2026-40158 (`type.__getattribute__` trampoline). PraisonAI version 4.6.40 and praisonaiagents version 1.6.40 contain an updated fix.

## Affected Products

- MervinPraison — PraisonAI (< 4.6.40)
- MervinPraison — < 1.6.40 (praisonaiagents)

## References

- [CNA](https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-4mr5-g6f9-cfrh)
- [CNA](https://github.com/MervinPraison/PraisonAI/pull/1684)
- [CNA](https://github.com/MervinPraison/PraisonAI/commit/b0d8f777528f3253a0cfb0a3ef65455da6ae32f6)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.88%
- **EPSS Percentile:** 57.1

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._