CVE-2026-34937

CriticalCVSS 9.8/10Last modified Jul 24, 2026

Description

PraisonAI is a multi-agent teams system. Prior to version 1.5.90, run_python() in praisonai constructs a shell command string by interpolating user-controlled code into python3 -c "<code>" and passing it to subprocess.run(..., shell=True). The escaping logic only handles \ and ", leaving $() and backtick substitutions unescaped, allowing arbitrary OS command execution before Python is invoked. This issue has been patched in version 1.5.90.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-78

Affected software

Vendor	Product	Versions
MervinPraison	PraisonAI	< 1.5.90

References

https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-w37c-qqfp-c67fExploit, Vendor Advisory
https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-w37c-qqfp-c67fExploit, Vendor Advisory

Timeline

Published: Apr 3, 2026
Last modified: Jul 24, 2026
NVD status: Analyzed

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