CVE-2026-19608
Keycloak-services: keycloak-services: name-only group claims let same-name groups satisfy path-specific group policies
- State
- Published
- Severity
- 5.3 Medium
- Published
- Aug 18, 2026
- Updated
- Aug 18, 2026
- Reserved
- Aug 12, 2026
Description
A flaw was found in the group policy provider of Keycloak authorization services, which is used to manage fine-grained access control to resources. The issue occurs when the system evaluates group-based policies using tokens that only contain group names rather than full paths. If two groups in different parts of the organization share the same name, a user in the unauthorized group can be mistaken for a member of the authorized group. This can allow a user to gain unauthorized access to protected resources they should not be able to reach.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.3 Medium | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N | redhat |
Weaknesses
- CWE-285 Improper Authorization
Affected Products
| Product | Versions |
|---|---|
Red Hat Build of KeycloakRed Hat | |
Red Hat Build of KeycloakRed Hat | |
Red Hat Single Sign-On 7Red Hat |
References
- https://access.redhat.com/security/cve/CVE-2026-19608vdb-entry
- RHBZ#2514530issue-tracking
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