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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.

PUBLISHED Reserved 2026-03-31 | Published 2026-04-03 | Updated 2026-04-06 | Assigner GitHub_M




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

Problem types

CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Product status

>= 4.5.15, < 4.5.69
affected

References

github.com/...isonAI/security/advisories/GHSA-9gm9-c8mq-vq7m

github.com/...ommit/47bff65413beaa3c21bf633c1fae4e684348368c

cve.org (CVE-2026-34935)

nvd.nist.gov (CVE-2026-34935)

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