GitHub Advisoryadvisory · Maven

GHSA-fjf4-6f34-w64q Keycloak: Missing Check on Disabled Client for Docker Registry Protocol

LOW Published 2026-02-19 Modified 2026-03-06 Official page ↗
Aliases
CVE-2026-2733
Ecosystem
Maven
Packages
org.keycloak:keycloak-services
Severity
Low
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N
Weaknesses
CWE-285
Reviewed
2026-02-19

Affected packages

• Maven org.keycloak:keycloak-services: <= 26.5.3 (no fix yet)

Description

A flaw was identified in the Docker v2 authentication endpoint of Keycloak, where tokens continue to be issued even after a Docker registry client has been administratively disabled. This means that turning the client “Enabled” setting to OFF does not fully prevent access. As a result, previously valid credentials can still be used to obtain authentication tokens. This weakens administrative controls and could allow unintended access to container registry resources.

Related

Alias · CVE (1)

  • CVE-2026-2733 A flaw was identified in the Docker v2 authentication endpoint of Keycloak, where tokens continue to be issued even after a Docker registry… vulnerability

Weakness · CWE (1)

  • CWE-285 Improper Authorization weakness

References