CVEvulnerability

CVE-2026-27478

9.1 CRITICAL Published 2026-03-11 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2026-03-11
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.1 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weaknesses
CWE-1390, CWE-290, CWE-346

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.

Affected configurations

• unitycatalog unitycatalog (<= 0.4.0)

Related

Weakness · CWE (3)

  • CWE-1390 Weak Authentication weakness
  • CWE-290 Authentication Bypass by Spoofing weakness
  • CWE-346 Origin Validation Error weakness

References