CVE-2025-10939
Org.keycloak/keycloak-quarkus-server: 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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Org.keycloak/keycloak-quarkus-server: 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.
- Record
CVE-2025-10939- CVSS 3.1
- 3.7 Low
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-427
- Updated
- 2026-11-02
EUVDEUVD-2025-36426
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.
- Record
EUVD-2025-36426- CVSS 3.1
- 3.7 Low
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-c6cm-5gc7-c3f4
Duplicate Advisory: Keycloak allows access to admin path through flaw
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This advisory has been withdrawn because it is a duplicate of GHSA-j4vq-q93m-4683.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.
- Record
GHSA-c6cm-5gc7-c3f4- CVSS 3.1
- 3.7 Low
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-427
- Updated
- 2026-11-02
GitHub AdvisoriesGHSA-vjr8-56p3-fmqq
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.
- Record
GHSA-vjr8-56p3-fmqq- CVSS 3.1
- 3.7 Low
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-427
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2025-10939- CVSS 3.1
- 3.7 Low
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-427
- Updated
- 2026-11-02
OSV
Org.keycloak/keycloak-quarkus-server: 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.
- Record
CVE-2025-10939- CVSS 3.1
- 3.7 Low
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-427
- Updated
- 2026-11-02
OSVGHSA-c6cm-5gc7-c3f4
Duplicate Advisory: Keycloak allows access to admin path through flaw
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.
- Record
GHSA-c6cm-5gc7-c3f4- CVSS 3.1
- 3.7 Low
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-427
- Updated
- 2026-11-02
OSVGHSA-vjr8-56p3-fmqq
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.
- Record
GHSA-vjr8-56p3-fmqq- CVSS 3.1
- 3.7 Low
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-427
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
org.keycloak:keycloak-quarkus-serverMaven |
before 26.4.4 | 26.4.4 |
org.keycloak:keycloak-quarkus-serverMaven |
before 26.4.4, plus listed versions 12.0.012.0.112.0.212.0.312.0.4 Show 45 moreShow less13.0.013.0.114.0.015.0.015.0.115.0.215.1.015.1.116.0.016.1.016.1.117.0.017.0.118.0.018.0.118.0.219.0.019.0.119.0.219.0.320.0.020.0.120.0.220.0.320.0.420.0.521.0.021.0.121.0.221.1.021.1.121.1.222.0.022.0.122.0.222.0.322.0.422.0.523.0.023.0.123.0.223.0.323.0.423.0.523.0.6 |
26.4.4 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected | ||
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-10939 is a low vulnerability (CVSS 3.7) in Keycloak, published October 28, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.41%, the 35th percentile. Fixed in org.keycloak:keycloak-quarkus-server 26.4.4.
References
access.redhat.com/errata/RHSA-2025:21370
bugzilla.redhat.com/show_bug.cgi?id=2398025
github.com/keycloak/keycloak/issues/43763
Show 8 moreShow less
nvd.nist.gov/vuln/detail/CVE-2025-10939
catalog.redhat.com/software/containers
Left out here: 44 versions. The JSON record has them.