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.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None
References
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2026:30049
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2026:30050
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2026:30083
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2026:30084
- VENDOR_ADVISORYhttps://access.redhat.com/security/cve/CVE-2026-9705
- MISChttps://bugzilla.redhat.com/show_bug.cgi?id=2481878