CVE-2025-63386: A Cross-Origin Resource Sharing (CORS) misconfiguration vulnerability exists in Dify v1.9.1 in the /console/api/setup…
CVE-2025-63386 · Severity: critical · CVSS 9.1 · Published 2025-12-18
A Cross-Origin Resource Sharing (CORS) misconfiguration vulnerability exists in Dify v1.9.1 in the /console/api/setup endpoint. The endpoint implements an insecure CORS policy that reflects any Origin header and enables Access-Control-Allow-Credentials: true, permitting arbitrary external domains to make authenticated requests. NOTE: the Supplier disputes this because the endpoint configuration is intentional to support bootstrap.
No. Junglewise Threat Intelligence has no report of CVE-2025-63386 being exploited in the wild.
How severe is CVE-2025-63386?
Critical severity, with a CVSS score of 9.1, published 18 December 2025.
Which products and versions are affected?
Langgenius Dify. The advisory does not name versions.
Is there a fix for CVE-2025-63386?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2025-63386?
Check whether you run Langgenius Dify. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.