CVE-2025-66201

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.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/danny-avila/LibreChat/security/advisories/GHSA-7m2q-fjwr-5x8v	Exploit Vendor Advisory
https://github.com/danny-avila/LibreChat/security/advisories/GHSA-7m2q-fjwr-5x8v	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:librechat:librechat::::::::
	cpe:2.3:a:librechat:librechat:0.8.1:-::::::
	cpe:2.3:a:librechat:librechat:0.8.1:rc1::::::

History

07 Oct 2026, 20:10

Type	Values Removed	Values Added
Summary		(es) LibreChat es un clon de ChatGPT con características adicionales. Antes de la versión 0.8.1-rc2, LibreChat es vulnerable a falsificación de petición del lado del servidor (SSRF), al pasar especificaciones OpenAPI especialmente diseñadas a su característica 'Acciones' y hacer que el LLM utilice esas acciones. Podría ser utilizado por un usuario autenticado con acceso a esta característica para acceder a URLs solo accesibles para el servidor de LibreChat (como servicios de metadatos en la nube, a través de los cuales la suplantación del servidor podría ser posible). Este problema ha sido parcheado en la versión 0.8.1-rc2.

Information

Published : 2025-11-29 02:15

Updated : 2026-10-07 20:10

NVD link : CVE-2025-66201

Mitre link : CVE-2025-66201

CVE.ORG link : CVE-2025-66201

JSON object : View

Products Affected

librechat

librechat

CWE

CWE-20

Improper Input Validation

CWE-918

Server-Side Request Forgery (SSRF)

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