Keycloak unable to restrict access to the admin console
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.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | org.keycloak:keycloak-quarkus-server | < 26.4.4 | 26.4.4 |
References
- https://github.com/keycloak/keycloak/security/advisories/GHSA-vjr8-56p3-fmqq
- https://nvd.nist.gov/vuln/detail/CVE-2025-10939
- 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
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N- Weakness (CWE)
CWE-427- Platform
- Java / Kotlin (Maven)
- Package
org.keycloak:keycloak-quarkus-server- Disclosed
- 02.12.2025
- Updated
- 11.10.2026 13:20
Sources and licenses
OSV / GitHub Advisory Database - GHSA-vjr8-56p3-fmqq - CC BY 4.0
Vulnerability history: org.keycloak:keycloak-quarkus-server
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 9
- First → latest
- 11.2024 02.2026
- Without a fix
- 1
- Exploited in attacks
- 0
Severity breakdown
- High 1
- Medium 6
- Low 2
Disclosures per year
- 2024: 3
- 2025: 4
- 2026: 2
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