CVE-2026-95503

MediumCVSS 6.8/10Last modified Sep 22, 2026

Description

A flaw was found in the Kerberos federation provider of Keycloak, an open-source identity and access management solution. When Kerberos password authentication is used without SPNEGO, the system fails to verify the identity of the Key Distribution Center (KDC) by requesting a server ticket. This allows an attacker on the same network to spoof the KDC and bypass the authentication process, potentially gaining unauthorized access to user accounts.

Metrics

CVSS 3.1 6.8/10CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Weakness enumeration

CWE-347

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

No affected versions have been published.

Timeline

Published: Sep 22, 2026
Last modified: Sep 22, 2026
NVD status: Awaiting Analysis

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