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CVE PROGRAM SOURCE RECORD5.3 Medium

CVE-2025-66452

LibreChat's lack of JSON parsing error handling can lead to XSS

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Status
Published
Published
Updated
Assigning organization
GitHub_M

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

danny-avila LibreChat

  • <= 0.8.1affected

References