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 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.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 4.9
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
- CWE
- CWE-200
- Published
- 2026-09-11
- Last modified
- 2026-09-11
Weakness type
Related vulnerabilities
- CVE-2026-89248 — AVideo WebRTC Plugin Information Disclosure via status.json.php
- CVE-2026-88059 — Angular: Information Leak via `HttpTransferCache` Bypass When Using `withRequestsMadeViaParent`
- CVE-2026-88013 — rclone: http backend forwards custom/auth headers to a different host on redirect
- CVE-2026-88893 — OpenPanel Unauthenticated Share Lookup Information Disclosure
- CVE-2026-88876 — AVideo PlayerSkins seo.php Missing Authorization Password-Protected VOD
- CVE-2026-88874 — AVideo through c3edcc274c389816d434acadac07ee78eaf330c1 Authentication Bypass
- CVE-2026-0305 — Prisma Access Agent: Information Disclosure Vulnerability on Linux
- CVE-2026-87017 — Open WebUI: Inaccessible knowledge bases are exposed through the built-in knowledge tool on most vector backends