Unitycatalog vulnerabilities
Published CVEs affecting Unitycatalog products: 1 record(s), with severity, exploitation and fixes.
CVE-2026-27478
Critical · 9.1
CWE-290 Mar 11, 2026
Unity Catalog has a JWT Issuer Validation Bypass Allows Complete User Impersonation
Unity Catalog is an open, multi-modal Catalog for data and AI. In 0.4.0 and earlier, a critical authentication bypass vulnerability exists in the Unity Catalog token exchange endpoint (/api/1.0/unity-control/auth/tokens). The endpoint extracts the issuer (iss) claim from incoming JWTs and uses it to dynamically fetch the JWKS endpoint for signature validation without validating that the issuer is a trusted identity provider.