CVE-2026-14614
Keycloak-services: keycloak-services: fgap v2 client scope assignment bypass via clientresource
CVSS Score
5.4
EPSS Score
0.1%
EPSS Percentile
4th
A flaw was found in the ClientResource component of Keycloak's admin services when Fine-Grained Admin Permissions (FGAP) v2 is enabled. This issue allows a delegated administrator, who should only have limited control over specific clients, to attach or remove hidden client scopes that they are not authorized to see or manage. As a result, an attacker could inject unauthorized data or permissions into the security tokens issued to end-users, potentially tricking other applications into granting higher levels of access than intended.
| CWE | CWE-639 |
| Vendor | red hat |
| Product | red hat build of keycloak 26.4 |
| Published | Jul 3, 2026 |
| Last Updated | Aug 5, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
Red Hat / Red Hat build of Keycloak 26.4
All versions affected Red Hat / Red Hat build of Keycloak 26.4
All versions affected Red Hat / Red Hat build of Keycloak 26.4
All versions affected Red Hat / Red Hat build of Keycloak 26.4.14
All versions affected Red Hat / Red Hat build of Keycloak 26.6
All versions affected Red Hat / Red Hat build of Keycloak 26.6
All versions affected Red Hat / Red Hat build of Keycloak 26.6
All versions affected Red Hat / Red Hat build of Keycloak 26.6.5
All versions affected Red Hat / Red Hat Build of Keycloak
All versions affected Red Hat / Red Hat Build of Keycloak
All versions affected Red Hat / Red Hat Data Grid 8
All versions affected Red Hat / Red Hat JBoss Enterprise Application Platform Expansion Pack
All versions affected Red Hat / Red Hat Single Sign-On 7
All versions affected References
access.redhat.com: https://access.redhat.com/errata/RHSA-2026:50846 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:50847 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:50848 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:50849 access.redhat.com: https://access.redhat.com/security/cve/CVE-2026-14614 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2496889
Credits
Red Hat would like to thank yd1ng for reporting this issue.