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GHSA-c6cm-5gc7-c3f4: Duplicate Advisory: Keycloak allows access to admin path through flaw

October 28, 2025 (updated December 20, 2025)

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-j4vq-q93m-4683. This link is maintained to preserve external references.

Original 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.

References

  • access.redhat.com/errata/RHSA-2025:21370
  • access.redhat.com/errata/RHSA-2025:21371
  • access.redhat.com/security/cve/CVE-2025-10939
  • bugzilla.redhat.com/show_bug.cgi?id=2398025
  • github.com/advisories/GHSA-c6cm-5gc7-c3f4
  • github.com/keycloak/keycloak
  • github.com/keycloak/keycloak/issues/43763
  • github.com/keycloak/keycloak/pull/43765
  • nvd.nist.gov/vuln/detail/CVE-2025-10939

Code Behaviors & Features

Detect and mitigate GHSA-c6cm-5gc7-c3f4 with GitLab Dependency Scanning

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Affected versions

All versions up to 26.4.2

Solution

Unfortunately, there is no solution available yet.

Impact 3.7 LOW

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

Learn more about CVSS

Weakness

  • CWE-427: Uncontrolled Search Path Element

Source file

maven/org.keycloak/keycloak-quarkus-server/GHSA-c6cm-5gc7-c3f4.yml

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