CVE-2026-34938
PraisonAI: Python Sandbox Escape via str Subclass startswith() Override in execute_code
- State
- Published
- Severity
- 10.0 Critical
- Published
- Apr 3, 2026
- Updated
- Apr 6, 2026
- Reserved
- Mar 31, 2026
Description
PraisonAI is a multi-agent teams system. Prior to version 1.5.90, execute_code() in praisonai-agents runs attacker-controlled Python inside a three-layer sandbox that can be fully bypassed by passing a str subclass with an overridden startswith() method to the _safe_getattr wrapper, achieving arbitrary OS command execution on the host. This issue has been patched in version 1.5.90.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 10.0 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H | GitHub_M |
Weaknesses
- CWE-693 Protection Mechanism Failure
Affected Products
| Product | Versions |
|---|---|
PraisonAIMervinPraison |
|
References
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