CVE-2025-63386: Langgenius Dify

Critical severity, CVSS 9.1. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

• Langgenius Dify: version 1.9.1 only

Published 2025-12-18. Last modified 2026-06-17.