> CVE-2026-27478 [CRITICAL]

« BACK_TO_HOME
PUBLISHED
2026-03-11 20:16
MODIFIED
2026-03-11 20:16
CVSS_SCORE V3
9.1
EPSS (Prob. Exploit)
0.21%
Top 89.0%
DATA SOURCES:
NVD đź”— 2026-03-11 CWE MITRE đź”— 2026-11-01 FIRST EPSS đź”— 2026-11-08 GITHUB đź”— 2026-10-28 OSV đź”— 2026-11-08

> 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_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

CVSS_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

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Network (N)
Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque)
Attack Complexity
Low (L)
Peu de conditions requises pour exploiter
PR (Privilèges Requis)
Privileges Required
None (N)
Aucune authentification requise
UI (Interaction Utilisateur)
User Interaction
None (N)
Aucune interaction utilisateur nécessaire
S (Périmètre)
Scope
Unchanged (U)
Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
High (H)
Divulgation totale d'informations
I (Impact Intégrité)
Integrity Impact
High (H)
Modification totale des données possible
A (Impact Disponibilité)
Availability Impact
None (N)
Aucune interruption de service

> RÉSUMÉ DES IMPACTS

Confidentialité
High
Divulgation totale d'informations
Intégrité
High
Modification totale des données possible
Disponibilité
None
Aucune interruption de service

> WEAKNESSES

CWE-290 CWE-346 CWE-1390

> CWE DETAILED DESCRIPTIONS

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. | 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.

> GITHUB SECURITY ADVISORY

GHSA-qqcj-rghw-829x CRITICAL

Unity Catalog has a JWT Issuer Validation Bypass tht Allows Complete User Impersonation

AFFECTED PACKAGES:
MAVEN / io.unitycatalog:unitycatalog-server
<= 0.4.0
Fixed in: 0.4.1

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Unity Catalog has a JWT Issuer Validation Bypass Allows Complete User Impersonation

AFFECTED PACKAGES:
Unknown / Unknown
2 versions affected
ALIASES:
GHSA-qqcj-rghw-829x

> HISTORIQUE DES MODIFICATIONS

Première apparition
11/03/2026 20:16
Source: NVD
đź“Š ENRICHISSEMENT 01/04/2026 06:02
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
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...
Total des modifications: 1 Dernière mise à jour: 7 months ago

> REFERENCES

https://github.com/unitycatalog/unitycatalog/security/advisories/GHSA-qqcj-rghw-...
« BACK_TO_HOME