Skip to content
CVE PROGRAM SOURCE RECORD9.8 Critical

CVE-2026-34935

PraisonAI: OS Command Injection in MCPHandler.parse_mcp_command()

Description

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 products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

MervinPraison PraisonAI

  • >= 4.5.15, < 4.5.69affected

References