CVE-2026-42138

MEDIUM

Dify Vulnerable to Stored XSS via SVG-file upload

Title source: CVE List
STIX 2.1 vulnerability

Record summary

CVE-2026-42138 has a selected CVSS score of 6.9 (medium).

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.

Description source: CVE List

Exploitation context

CISA SSVC decision

ExploitationPoC
AutomatableYes
Technical impactPartial

CISA Coordinator · SSVC 2.0.3 · Evaluated May 4, 2026 · Source: CVE List

Affected products and versions

1
ProductSourceVersion range

dify

Browse langgenius / dify
CVE List< 1.13.1affected

References

2