| Component | LibreChat |
| Severity | critical (CVSS 9.1) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H |
| Published (NVD) | 2026-01-12 |
| Last modified | 2026-06-17 |
| Affected versions | librechat = 0.8.2 |
| Fixed in | see the vendor advisory |
| Weakness | CWE-285 |
| CISA KEV | not listed |
NVD 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.
What to do
- NVD lists no fixed version yet: follow the vendor advisory below and keep LibreChat off the public internet until a fix ships.
- Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-22252
- https://github.com/danny-avila/LibreChat/security/advisories/GHSA-cxhj-j78r-p88f
- https://github.com/danny-avila/LibreChat/commit/211b39f3113d4e6ecab84be0a83f4e9c9dea127f
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