CVE-2026-42138 — MEDIUM (6.1)

Q: How severe is CVE-2026-42138?

CVE-2026-42138 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-42138?

Check the references section above for vendor advisories and patch information. Affected products include: Langgenius Dify.

Vulnerability 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.

CVSS Score

6.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Langgenius	Dify	< 1.13.1

Related Weaknesses (CWE)

CWE-79

References

https://github.com/langgenius/dify/releases/tag/1.13.1Release Notes
https://github.com/langgenius/dify/security/advisories/GHSA-cg94-8v83-7hjjExploitVendor Advisory
https://github.com/langgenius/dify/security/advisories/GHSA-cg94-8v83-7hjjExploitVendor Advisory

FAQ

What is CVE-2026-42138?

CVE-2026-42138 is a vulnerability with a CVSS score of 6.1 (MEDIUM). 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/fil...

How severe is CVE-2026-42138?

CVE-2026-42138 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-42138?

Check the references section above for vendor advisories and patch information. Affected products include: Langgenius Dify.