CVE-2026-27478: CVE-2026-27478: Authentication Bypass via Dynamic JWKS Discovery in Unity Catalog

📰 Dev.to · CVE Reports

Learn about CVE-2026-27478, an authentication bypass vulnerability in Unity Catalog via dynamic JWKS discovery, and how to mitigate it

advanced Published 11 May 2026

Action Steps

Identify Unity Catalog instances using dynamic JWKS discovery
Configure JWT authentication to use static JWKS
Test authentication workflows to ensure bypass vulnerability is mitigated
Apply security patches or updates to Unity Catalog
Monitor application logs for suspicious authentication activity

Who Needs to Know This

Security teams and developers working with Unity Catalog and JWT authentication should be aware of this vulnerability to ensure the security of their applications

Key Insight

💡 Dynamic JWKS discovery in Unity Catalog can lead to authentication bypass vulnerabilities, highlighting the need for secure JWT authentication configurations