Security Flaw in Keycloak Allows Unauthorized Access to Admin Path
CVE-2025-10939

3.7LOW

Key Information:

Vendor

Keycloak

Status
Keycloak
Red Hat Build Of Keycloak 26.4
Red Hat Build Of Keycloak 26.4.4
Vendor
CVE Published:
28 October 2025

What is CVE-2025-10939?

A security flaw in Keycloak has been identified, which may allow unauthorized access to the /admin application path through improper proxy configuration. The vulnerability arises when the recommended security measures, particularly regarding the exposure of admin paths, are not followed. When utilizing proxies like HAProxy, attackers can potentially manipulate requests using relative or non-normalized paths, thereby gaining access to critical administrative functionalities. Proper safeguards must be implemented to secure administrative paths from external exposure.

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Deploy the Patch

Affected Version(s)

keycloak 0 < 26.4.4

Red Hat build of Keycloak 26.4 26.4.4-1

Red Hat build of Keycloak 26.4 26.4-3

References

https://access.redhat.com/errata/RHSA-2025:21370
vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:21371
vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2025-10939
vdb-entryx_refsource_REDHAT

CVSS V3.1

Score:
3.7
Severity:
LOW
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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