danny-avila LibreChat up to 0.8.0 PATCH Endpoint /api/prompts/groups/ updatePromptGroup input validation

Summaryinfo

A vulnerability, which was classified as critical, was found in danny-avila LibreChat up to 0.8.0. This impacts the function updatePromptGroup of the file /api/prompts/groups/ of the component PATCH Endpoint. Such manipulation leads to input validation. This vulnerability is referenced as CVE-2025-66451. It is possible to launch the attack remotely. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in danny-avila LibreChat up to 0.8.0. It has been rated as critical. Affected by this issue is the function updatePromptGroup of the file /api/prompts/groups/ of the component PATCH Endpoint. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is confidentiality, integrity, and availability. CVE summarizes:

LibreChat is a ChatGPT clone with additional features. In versions 0.8.0 and below, when creating prompts, JSON requests are sent to define and modify the prompts via PATCH endpoint for prompt groups (/api/prompts/groups/:groupId). However, the request bodies are not sufficiently validated for proper input, enabling users to modify prompts in a way that was not intended as part of the front end system. The patchPromptGroup function passes req.body directly to updatePromptGroup() without filtering sensitive fields. This issue is fixed in version 0.8.1.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2025-66451 since 12/01/2025. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

Upgrading to version 0.8.1 eliminates this vulnerability.

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Productinfo

Type

• Chat Software

Vendor

• danny-avila

Name

• LibreChat

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8.0

Website

• Product: https://github.com/danny-avila/LibreChat/

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