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CVE-2026-27478 - Vulnerability Analysis

CriticalCVSS: 9.1

Last Updated: March 12, 2026

Unity Catalog - Authentication Bypass

Published: March 11, 2026Updated: March 12, 2026Remote Exploitable

Overview

Unity Catalog <= 0.4.0 contains an authentication bypass caused by lack of validation of the issuer claim in JWT token exchange endpoint, letting attackers bypass authentication, exploit requires crafted JWT tokens.

Severity & Score

Severity: Critical

CVSS Score: 9.1

Impact

Attackers can bypass authentication, gaining unauthorized access to the system.

Mitigation

Update to a version later than 0.4.0 or the latest available version.

References

https://github.com/unitycatalog/unitycatalog/security/advisories/GHSA-qqcj-rghw-829x

Related Resources

Vulnerability Intelligence Dashboard
Credential Scanner

Details

CVE ID: CVE-2026-27478
Severity: Critical
CVSS Score: 9.1
Type: broken_authentication
Status: unconfirmed

CWE

CWE-290

CVSS Metrics

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N