CVE-2026-42138

Description

Dify is an open-source LLM app development platform. Prior to version 1.13.1, using the method POST /api/files/upload, any unauthenticated user can upload an SVG file with XSS. The method POST /v1/files/upload, which requires authentication through the application API, is also vulnerable. This issue has been patched in version 1.13.1.

References

• https://github.com/langgenius/dify/releases/tag/1.13.1
• https://github.com/langgenius/dify/security/advisories/GHSA-cg94-8v83-7hjj
• https://github.com/langgenius/dify/security/advisories/GHSA-cg94-8v83-7hjj