CVE-2026-22252

CRITICAL

LibreChat < 0.8.2-rc2 - Authenticated Remote Code Execution via MCP Stdio Transport

Title source: llm
STIX 2.1

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.

References (2)

Core 2

Scores

CVSS v3 9.1
EPSS 0.0368
EPSS Percentile 88.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-285
Status published
Products (1)
librechat/librechat 0.8.2 rc1
Published Jan 12, 2026
Tracked Since Feb 18, 2026