CVE-2025-66201

LibreChat is Vulnerable to Server-Side Request Forgery (SSRF) in Actions Capability

State: Published
Severity: 8.6 High
Published: Nov 29, 2025
Updated: Dec 1, 2025
Reserved: Nov 24, 2025

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.

Scores

CVSS	Score	Vector	Source
4.0	8.6 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N	GitHub_M

Weaknesses

CWE-20 Improper Input Validation
CWE-918 Server-Side Request Forgery (SSRF)

Affected Products

Product	Versions
LibreChatdanny-avila	< 0.8.1-rc2Affected

References

https://github.com/danny-avila/LibreChat/security/advisories/GHSA-7m2q-fjwr-5x8v

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.