Keycloak DCR Service Leak: Admin Role Reveals Client Secret
CVE-2026-89298 Published on September 11, 2026
Keycloak-services: keycloak-services: confidential client secret disclosed to view-clients role via client registration get
A flaw was found in the Dynamic Client Registration service of Keycloak, an open-source identity and access management solution. The issue occurs when a user with the view-clients role accesses the client registration endpoint to retrieve client details. Due to a failure to mask sensitive information, the service returns the client's confidential secret in cleartext. This could allow a read-only administrator to obtain full access to the affected client's account and potentially escalate their privileges within the realm.
Vulnerability Analysis
CVE-2026-89298 is exploitable with network access, and requires user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality, with no impact on integrity and availability.
Timeline
Reported to Red Hat.
Made public.
Weakness Type
What is an Information Disclosure Vulnerability?
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
CVE-2026-89298 has been classified to as an Information Disclosure vulnerability or weakness.
Products Associated with CVE-2026-89298
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