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.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - 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. (CVE-2025-10939)

The version of Keycloak installed on the remote host is affected by a path traversal vulnerability. A flaw was found in Keycloak where the /admin path can be accessed using relative/non-normalized paths (e.g., /realms/../admin/), bypassing proxy restrictions recommended in the Keycloak guides. This allows an attacker to access the admin console path that was intended to be blocked at the proxy level. While the admin path still requires authentication, this vulnerability exposes a path that administrators believe is not accessible from external networks.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Type	Severity
462565	Echo: org.keycloak:keycloak-quarkus-server: security update to 26.4.4	Tenable Cloud Security	Echo Local Security Checks	Local	low
462565	Echo: org.keycloak:keycloak-quarkus-server: security update to 26.4.4	Tenable Self-Hosted Container Security	Echo Local Security Checks	Local	low
437276	SCA: security update for org.keycloak:keycloak-quarkus-server (GHSA-vjr8-56p3-fmqq)	Tenable Cloud Security	SCA Checks	Local	low
437276	SCA: security update for org.keycloak:keycloak-quarkus-server (GHSA-vjr8-56p3-fmqq)	Tenable Self-Hosted Container Security	SCA Checks	Local	low
272093	Keycloak Admin Path Traversal Vulnerability (CVE-2025-10939)	Nessus	Misc.	Local	low

Detections

Analytics

CVE-2025-10939

low

Tenable Plugins

low

low

low

low

low