CVE-2026-34935: PraisonAI is a multi-agent teams system. From version 4.5.15 to before version 4.5.69, the --mcp CLI argument is passed directly to shlex.split() and forwarded…

PriorityP264critical9.8CVSS 3.1

AVNACLPRNUINSUCHIHAH

EPSS

0.82%

52.8th percentile

PraisonAI is a multi-agent teams system. From version 4.5.15 to before version 4.5.69, the --mcp CLI argument is passed directly to shlex.split() and forwarded through the call chain to anyio.open_process() with no validation, allowlist check, or sanitization at any hop, allowing arbitrary OS command execution as the process user. This issue has been patched in version 4.5.69.

Affected

4 ranges

Vendor	Product	Version range	Fixed in
mervinpraison	praisonai	< 4.6.9	4.6.9
mervinpraison	praisonai	>= 0 < 4.5.149	4.5.149
mervinpraison	praisonai	>= 4.5.15 < 4.5.69	4.5.69
praison	praisonai	>= 4.5.15 < 4.5.69	4.5.69

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