CVE-2026-9705
Keycloak: keycloak: attacker can re-enable and take over disabled clients via registration access token
- State
- Published
- Severity
- 6.5 Medium
- Published
- Jun 25, 2026
- Updated
- Jun 29, 2026
- Reserved
- May 27, 2026
Description
A flaw was found in Keycloak's client registration service. A remote attacker, possessing a previously issued Registration Access Token (RAT), could exploit this vulnerability to re-enable a client that an administrator had explicitly disabled. This bypasses security controls, allowing the attacker to reset the client's secret and potentially regain privileged API access. The primary impact includes unauthorized information disclosure and potential integrity compromise.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N | redhat |
Weaknesses
- CWE-613 Insufficient Session Expiration
Affected Products
| Product | Versions |
|---|---|
Red Hat build of Keycloak 26.4Red Hat |
|
Red Hat build of Keycloak 26.4Red Hat |
|
Red Hat build of Keycloak 26.4Red Hat |
|
Red Hat build of Keycloak 26.4.13Red Hat | |
Red Hat build of Keycloak 26.6Red Hat |
|
Red Hat build of Keycloak 26.6Red Hat |
|
Red Hat build of Keycloak 26.6Red Hat |
|
Red Hat build of Keycloak 26.6.4Red Hat |
References
- RHSA-2026:30049vendor-advisory
- RHSA-2026:30050vendor-advisory
- RHSA-2026:30083vendor-advisory
- RHSA-2026:30084vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-9705vdb-entry
- RHBZ#2481878issue-tracking
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