CVE-2026-89298
A flaw was found in the Dynamic Client Registration service of Keycloak, an open-source identity and access management solution. The issue o
CVSS
4.9
Medium
EPSS
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KEV
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Exploit Today
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0-100
Published: Sep 11, 2026 · Last modified: Sep 11, 2026 · CWE-200
Not enough EPSS history yet.
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.