CVE-2026-22252

LibreChat MCP Stdio Remote Command Execution

State: Published
Severity: 9.1 Critical
Published: Jan 12, 2026
Updated: Jan 12, 2026
Reserved: Jan 7, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	9.1 Critical	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H	GitHub_M

Weaknesses

CWE-285 Improper Authorization

Affected Products

Product	Versions
LibreChatdanny-avila	< v0.8.2-rc2Affected

References

https://github.com/danny-avila/LibreChat/security/advisories/GHSA-cxhj-j78r-p88f
https://github.com/danny-avila/LibreChat/commit/211b39f3113d4e6ecab84be0a83f4e9c9dea127f

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