Description

LibreChat is a ChatGPT clone with additional features. In versions 0.8.0 and below, there is no handler for JSON parsing errors; SyntaxError from express.json() includes user input in the error message, which gets reflected in responses. User input (including HTML/JavaScript) can be exposed in error responses, creating an XSS risk if Content-Type isn't strictly enforced. This issue does not have a fix at the time of publication.

INFO

Published Date :

2025-12-11T22:52:20.442Z

Last Modified :

2025-12-12T19:28:19.177Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2025-66452 vulnerability.

Vendors Products
Librechat
  • Librechat
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-66452.

URL Resource
https://github.com/danny-avila/LibreChat/security/advisories/GHSA-q6c5-gvj5-c264 cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact