CVE-2026-27478 | BDVDB-2026-319969 Detail

Description#

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.

Impact#

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Exploit#

History#

1. Version 12026-03-11Record published in the CVE List.
2. Version 22026-03-12Most recent update recorded in the CVE List.