CVE-2026-42138

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...

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Published: May 4, 2026

Modified: May 4, 2026

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