---
id: CVE-2026-89298
title: >-
  A flaw was found in the Dynamic Client Registration service of Keycloak, an
  open-source identity and access management solution
summary: >-
  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
  retriev…
severity: medium
cvss: 4.9
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-200
vendor: Red Hat
product: keycloak/rhbk-openshift-rhel9
affected:
  - keycloak/rhbk-openshift-rhel9 (all versions)
  - keycloak-services (all versions)
  - rhbk/keycloak-rhel9 (all versions)
  - keycloak-services (all versions)
published: '2026-09-11'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T19:42:43.623'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-89298'
references:
  - url: 'https://access.redhat.com/security/cve/CVE-2026-89298'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2531871'
    label: secalert@redhat.com
tags:
  - nvd
  - cve.org
epss: 0.00413
epssPercentile: 0.32792
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-11T14:52:15.544171Z'
ingestedAt: '2026-09-12T13:46:47.357Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.