Unitycatalog Unitycatalog vulnerabilities

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Published CVEs affecting Unitycatalog Unitycatalog: 1 record(s), with affected versions and fixes.
cpe:2.3:a:unitycatalog:unitycatalog

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.