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10 vulnerabilities found for Red Hat build of Keycloak 26.4 by Red Hat
CVE-2025-13467 (GCVE-0-2025-13467)
Vulnerability from cvelistv5 – Published: 2025-11-25 16:02 – Updated: 2025-11-27 06:34
VLAI?
Summary
A flaw was found in the Keycloak LDAP User Federation provider. This vulnerability allows an authenticated realm administrator to trigger deserialization of untrusted Java objects via a malicious LDAP server configuration.
Severity ?
5.5 (Medium)
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected:
26.2.11-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.2::el9 |
|||||||||||||||||||||||||||||||||||||
|
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Credits
Red Hat would like to thank Icare & truff (YWH) for reporting this issue.
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CVE-2025-11538 (GCVE-0-2025-11538)
Vulnerability from cvelistv5 – Published: 2025-11-13 16:47 – Updated: 2025-11-13 22:32
VLAI?
Summary
A vulnerability exists in Keycloak's server distribution where enabling debug mode (--debug <port>) insecurely defaults to binding the Java Debug Wire Protocol (JDWP) port to all network interfaces (0.0.0.0). This exposes the debug port to the local network, allowing an attacker on the same network segment to attach a remote debugger and achieve remote code execution within the Keycloak Java virtual machine.
Severity ?
6.8 (Medium)
CWE
- CWE-1327 - Binding to an Unrestricted IP Address
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected:
26.4.4-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
|||||||||||||||||
|
|||||||||||||||||||
Credits
This issue was discovered by Steven Hawkins (Red Hat).
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CVE-2025-12390 (GCVE-0-2025-12390)
Vulnerability from cvelistv5 – Published: 2025-10-28 13:23 – Updated: 2025-12-02 15:10
VLAI?
Summary
A flaw was found in Keycloak. In Keycloak where a user can accidentally get access to another user's session if both use the same device and browser. This happens because Keycloak sometimes reuses session identifiers and doesn’t clean up properly during logout when browser cookies are missing. As a result, one user may receive tokens that belong to another user.
Severity ?
6 (Medium)
CWE
- CWE-384 - Session Fixation
Assigner
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| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected:
26.2.11-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.2::el9 |
|||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||
Credits
Red Hat would like to thank Simon Levermann (CTS EVENTIM Solutions GmbH) for reporting this issue.
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CVE-2025-10939 (GCVE-0-2025-10939)
Vulnerability from cvelistv5 – Published: 2025-10-28 03:08 – Updated: 2025-11-13 22:33
VLAI?
Summary
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.
Severity ?
CWE
- CWE-427 - Uncontrolled Search Path Element
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected:
26.4.4-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
|||||||||||||||||
|
|||||||||||||||||||
Credits
Red Hat would like to thank Sebastian Reigber (AEB) for reporting this issue.
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CVE-2025-12110 (GCVE-0-2025-12110)
Vulnerability from cvelistv5 – Published: 2025-10-23 14:19 – Updated: 2025-12-03 17:39
VLAI?
Summary
A flaw was found in Keycloak. An offline session continues to be valid when the offline_access scope is removed from the client. The refresh token is accepted and you can continue to request new tokens for the session. As it can lead to a situation where an administrator removes the scope, and assumes that offline sessions are no longer available, but they are.
Severity ?
5.4 (Medium)
CWE
- CWE-613 - Insufficient Session Expiration
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected:
26.2.11-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.2::el9 |
|||||||||||||||||||||||||||||||||||||
|
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CVE-2025-13467 (GCVE-0-2025-13467)
Vulnerability from nvd – Published: 2025-11-25 16:02 – Updated: 2025-11-27 06:34
VLAI?
Summary
A flaw was found in the Keycloak LDAP User Federation provider. This vulnerability allows an authenticated realm administrator to trigger deserialization of untrusted Java objects via a malicious LDAP server configuration.
Severity ?
5.5 (Medium)
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected:
26.2.11-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.2::el9 |
|||||||||||||||||||||||||||||||||||||
|
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Credits
Red Hat would like to thank Icare & truff (YWH) for reporting this issue.
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CVE-2025-11538 (GCVE-0-2025-11538)
Vulnerability from nvd – Published: 2025-11-13 16:47 – Updated: 2025-11-13 22:32
VLAI?
Summary
A vulnerability exists in Keycloak's server distribution where enabling debug mode (--debug <port>) insecurely defaults to binding the Java Debug Wire Protocol (JDWP) port to all network interfaces (0.0.0.0). This exposes the debug port to the local network, allowing an attacker on the same network segment to attach a remote debugger and achieve remote code execution within the Keycloak Java virtual machine.
Severity ?
6.8 (Medium)
CWE
- CWE-1327 - Binding to an Unrestricted IP Address
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected:
26.4.4-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
|||||||||||||||||
|
|||||||||||||||||||
Credits
This issue was discovered by Steven Hawkins (Red Hat).
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CVE-2025-12390 (GCVE-0-2025-12390)
Vulnerability from nvd – Published: 2025-10-28 13:23 – Updated: 2025-12-02 15:10
VLAI?
Summary
A flaw was found in Keycloak. In Keycloak where a user can accidentally get access to another user's session if both use the same device and browser. This happens because Keycloak sometimes reuses session identifiers and doesn’t clean up properly during logout when browser cookies are missing. As a result, one user may receive tokens that belong to another user.
Severity ?
6 (Medium)
CWE
- CWE-384 - Session Fixation
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected:
26.2.11-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.2::el9 |
|||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||
Credits
Red Hat would like to thank Simon Levermann (CTS EVENTIM Solutions GmbH) for reporting this issue.
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CVE-2025-10939 (GCVE-0-2025-10939)
Vulnerability from nvd – Published: 2025-10-28 03:08 – Updated: 2025-11-13 22:33
VLAI?
Summary
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.
Severity ?
CWE
- CWE-427 - Uncontrolled Search Path Element
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected:
26.4.4-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
|||||||||||||||||
|
|||||||||||||||||||
Credits
Red Hat would like to thank Sebastian Reigber (AEB) for reporting this issue.
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CVE-2025-12110 (GCVE-0-2025-12110)
Vulnerability from nvd – Published: 2025-10-23 14:19 – Updated: 2025-12-03 17:39
VLAI?
Summary
A flaw was found in Keycloak. An offline session continues to be valid when the offline_access scope is removed from the client. The refresh token is accepted and you can continue to request new tokens for the session. As it can lead to a situation where an administrator removes the scope, and assumes that offline sessions are no longer available, but they are.
Severity ?
5.4 (Medium)
CWE
- CWE-613 - Insufficient Session Expiration
Assigner
References
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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(rpm)
cpe:/a:redhat:build_keycloak:26.2::el9 |
|||||||||||||||||||||||||||||||||||||
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