Org.keycloak/keycloak-quarkus-server: unable to restrict access to the admin console
Vulnerability Description
A flaw was found in Keycloak. The Keycloak guides recommend to not expose /admin path to the outside in case the installation is using a proxy. The issue occurs at least via ha-proxy, as it can be tricked to using relative/non-normalized paths to access the /admin application path relative to /realms which is expected to be exposed.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
Am I Vulnerable?
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Red Hat would like to thank Sebastian Reigber (AEB) for reporting this issue.
References
- https://access.redhat.com/errata/RHSA-2025:21370
- https://access.redhat.com/errata/RHSA-2025:21371
- https://access.redhat.com/security/cve/CVE-2025-10939
- https://bugzilla.redhat.com/show_bug.cgi?id=2398025
- https://github.com/keycloak/keycloak/issues/43763
- https://github.com/keycloak/keycloak/pull/43765
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