ZDF
Sign inSign up

Vulnerabilities

Vulnerability · CVE-2026-27478

Unity Catalog is an open, multi-modal Catalog for data and AI.

Published Mar 11, 2026 · catalog updated Jun 17, 2026 · Unity Catalog is an

Check if you run it

No confirmed exploitation is on record for CVE-2026-27478. EPSS is 0.24%. Act only if a listed version of Unity Catalog is an is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Unity Catalog is an).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Critical9.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.24%
Remediation
Version ranges on file
Affected products
cpe unitycatalog/unitycatalog · stated unitycatalog

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe unitycatalog/unitycatalogversion unspecified
  • stated unitycatalog<= 0.4.0

How to fix CVE-2026-27478

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-27478. EPSS is 0.24%. Act only if a listed version of Unity Catalog is an is installed.

Which versions are affected?

Compare what you have installed with <= 0.4.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-1390; CWE-290: Authentication Bypass by Spoofing; CWE-346. EPSS 0.24%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 11, 2026 · NIST NVD

    Detected

    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

  2. Jun 17, 2026 · NIST NVD

    Updated

    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

Sources

  • CVE.orgVulnerability recordCVE-2026-27478

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-27478

    30-day exploitation probability 0.2%

    first.org
  • NIST NVDVulnerability recordCVE-2026-27478

    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

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.