CVE-2026-34938 — PraisonAI: Python Sandbox Escape via str Subclass startswith() Override in execute_code

CVE-2026-34938

PraisonAI: Python Sandbox Escape via str Subclass startswith() Override in execute_code PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
MervinPraison / PraisonAI	affected < 1.5.90

CWE

CWE-693

References

https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-6vh2-h83c-9294

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.