CVE-2026-34935

Published: Apr 3, 2026

Modified: Apr 6, 2026

PUBLISHED

CVSS v3.1

9.8

CRITICAL

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.

Vendor	Product	Versions
MervinPraison	PraisonAI	affected `>= 4.5.15, < 4.5.69`

Weaknesses (CWE)

CWE-78

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-9gm9-c8mq-vq7m

x_refsource_CONFIRM

https://github.com/MervinPraison/PraisonAI/commit/47bff65413beaa3c21bf633c1fae4e684348368c

x_refsource_MISC

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CVE-2026-34935

Description

Affected Products

Weaknesses (CWE)

CVSS v3.1 Details

References