CVE-2026-42138

EUVD-2026-27071
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.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
GitHub_MCNA
6.9 MEDIUM
NETWORK
LOW
NONE
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 34%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
langgeniusdify
𝑥
< 1.13.1
CNA
Common Weakness Enumeration
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