CVE-2026-22252

9.9 criticalEPSS 4.2%

Critical (9.9) in librechat librechat. 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.

Severity

CVSS 3.1

9.9 critical

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

EPSS: 4.2% chance of exploitation in the next 30 days; higher than 91% of CVEs (scores of 2026-10-31)
CWE: CWE-285
Published: 2026-01-12
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

librechat:librechat

References

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

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