CVE-2026-22252: Librechat

Critical severity, CVSS 9.9. EPSS: 4.2% chance of exploitation in the next 30 days.

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.

Affected products

• Librechat Librechat: version 0.8.2 only

Published 2026-01-12. Last modified 2026-06-17.