CORS Misconfiguration Vulnerability in Dify by LangGenius
CVE-2025-63386

9.1CRITICAL

Key Information:

Vendor

LangGenius

Status
Dify
Vendor
CVE Published:
18 December 2025

What is CVE-2025-63386?

A misconfiguration in the Cross-Origin Resource Sharing (CORS) policy of Dify version 1.9.1 exposes the /console/api/setup endpoint to security risks. This vulnerability allows any external domain to be reflected in the Origin header and enables Access-Control-Allow-Credentials to be set to true. As a result, unauthorized external domains can make authenticated requests, potentially compromising user data and system integrity.

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References

https://github.com/langgenius/dify/discussions
https://gist.github.com/Cristliu/1610daac87c711ac3e0250c5...
https://gist.github.com/Cristliu/8ad993126be05c9210c71cc7...

CVSS V3.1

Score:
9.1
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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