CVE-2023-2422

HighCVSS 7.1/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 7.1/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

Weakness enumeration

CWE-295

Affected software

No affected versions have been published.

Timeline

Published: Oct 4, 2023
Last modified: Jun 17, 2026
NVD status: Modified

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