CVE-2026-34938
CRITICALPraisonAI: Python Sandbox Escape via str Subclass startswith() Override in execute_code
Title source: cnaDescription
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.
References (1)
Core 1
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-6vh2-h83c-9294
Scores
CVSS v3
10.0
EPSS
0.0071
EPSS Percentile
48.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
total
Details
CWE
CWE-693
Status
published
Products (3)
MervinPraison/PraisonAI
< 1.5.90
praison/praisonaiagents
< 1.5.90
pypi/praisonaiagents
0 - 1.5.90PyPI
Published
Apr 03, 2026
Tracked Since
Apr 04, 2026