VULNERABILITY INTELLIGENCE

CVE-2023-2422

CVSS score5.5 MEDIUM
EPSS probability0.52%
CISA KEVNot currently listed
Published2023-10-04
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N

Description

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

Weakness classification

  • secalert@redhat.com: CWE-295
  • nvd@nist.gov: CWE-295

Primary references