GHSA-fjf4-6f34-w64q
Keycloak: Missing Check on Disabled Client for Docker Registry Protocol
At a glance
- Published
- Updated
- CVE
- CVE-2026-2733
- CVSS_V3
- CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N
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.
Affected packages
| Package | Versions |
|---|---|
| Maven · org.keycloak:keycloak-services | introduced 0, last affected 26.5.3 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-2733 ADVISORY
- https://github.com/keycloak/keycloak/issues/46462 WEB
- https://github.com/keycloak/keycloak/commit/743ac24081b2c6da36aac3775147ec5b80c2861e WEB
- https://access.redhat.com/errata/RHSA-2026:3947 WEB
- https://access.redhat.com/errata/RHSA-2026:3948 WEB
- https://access.redhat.com/security/cve/CVE-2026-2733 WEB
- https://bugzilla.redhat.com/show_bug.cgi?id=2440895 WEB
- https://github.com/keycloak/keycloak PACKAGE
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |