CVE-2026-22252 — CRITICAL (9.1)

Vulnerability Description

LibreChat is a ChatGPT clone with additional features. Prior to v0.8.2-rc2, LibreChat's MCP stdio transport accepts arbitrary commands without validation, allowing any authenticated user to execute shell commands as root inside the container through a single API request. This vulnerability is fixed in v0.8.2-rc2.

CVSS Score

9.1

CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Librechat	Librechat	0.8.2

Related Weaknesses (CWE)

CWE-285

References

FAQ

What is CVE-2026-22252?

CVE-2026-22252 is a vulnerability with a CVSS score of 9.1 (CRITICAL). LibreChat is a ChatGPT clone with additional features. Prior to v0.8.2-rc2, LibreChat's MCP stdio transport accepts arbitrary commands without validation, allowing any authenticated user to execute sh...

How severe is CVE-2026-22252?

CVE-2026-22252 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-22252?

Check the references section above for vendor advisories and patch information. Affected products include: Librechat Librechat.