CVE-2023-2422

HIGH7.1EPSS 0.32%

Keycloak vulnerable to Improper Client Certificate Validation for OAuth/OpenID clients

Published: 6/30/2023Modified: 2/16/2024

Description

When a Keycloak server is configured to support mTLS authentication for OAuth/OpenID clients, it does not properly verify the client certificate chain. A client that possesses a proper certificate can authorize itself as any other client and therefore access data that belongs to other clients.

Affected packages (1)

CVSS scores

SourceVersionSeverityVector
osvCVSS 3.1HIGH7.1CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

References (11)