VULNERABILITY INTELLIGENCE

CVE-2025-66201

CVSS score8.1 HIGH
EPSS probability0.31%
CISA KEVNot currently listed
Published2025-11-29
Last modified2026-10-07
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Description

LibreChat is a ChatGPT clone with additional features. Prior to version 0.8.1-rc2, LibreChat is vulnerable to Server-side Request Forgery (SSRF), by passing specially crafted OpenAPI specs to its "Actions" feature and making the LLM use those actions. It could be used by an authenticated user with access to this feature to access URLs only accessible to the LibreChat server (such as cloud metadata services, through which impersonation of the server might be possible). This issue has been patched in version 0.8.1-rc2.

Weakness classification

  • security-advisories@github.com: CWE-20
  • nvd@nist.gov: CWE-918

Primary references