Vulnerability in Langgenius Dify
CVE-2025-63388
A Cross-Origin Resource Sharing (CORS) misconfiguration vulnerability exists in Dify v1.9.1 in the /console/api/system-features endpoint. The endpoint implements an overly permissive CORS policy that reflects arbitrary Origin headers and sets Access-Control-Allow-Credentials: true, allowing any external domain to make authenticated cross-origin requests. NOTE: the Supplier disputes this, providing the rationale of "sending requests with credentials does not provide any additional access compared to unauthenticated requests."
EPSS: 0.002 (13.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Langgenius Dify — versions 1.9.1
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Issue Tracking)
- cve@mitre.org (Third Party Advisory)
- cve@mitre.org
Frequently asked questions
- What is CVE-2025-63388?
- CVE-2025-63388 is a critical-severity vulnerability in Langgenius Dify, classified under Origin Validation Error. CVSS score: 9.1/10. Published 2025-12-18.
- How severe is CVE-2025-63388?
- Critical severity. CVSS v3 base score is 9.1 out of 10.