CVE-2026-27478
9.1
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Exploitability: 3.9 / Impact: 5.2
Source: security-advisories@github.com (Secondary)
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 (1)
Products: Unitycatalog: Unitycatalog
Configuration A
| Vulnerable Software | Affected Versions |
|---|---|
| Up to 0.4.0 |
Related CWEs
CWE-1390
Weak Authentication
The product uses an authentication mechanism to restrict access to specific users or identities, but the mechanism does not sufficiently prove that the claimed identity is correct.
CWE-290
Authentication Bypass by Spoofing
This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.
CWE-346
Origin Validation Error
The product does not properly verify that the source of data or communication is valid.
References (1)
Source: security-advisories@github.com
Vendor Advisory
Timeline
No history available yet.