PT-2026-52507 · Red Hat · Red Hat Build Of Keycloak
Publicado
2026-06-25
·
Atualizado
2026-06-25
·
CVE-2026-9099
CVSS v3.1
7.7
Alta
| Vetor | AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N |
A flaw was found in Keycloak. A missing authorization check in the GroupResource.addChild() endpoint within the Admin REST API allows an authenticated user with limited administrative privileges to reparent any existing group. When Fine-Grained Admin Permissions v2 (FGAPv2) is enabled, an attacker with management rights over a single low-privilege group can reparent a highly privileged group (such as one possessing the realm-admin role) under their managed group.
Because group permissions follow a hierarchical structure, this action unauthorizedly grants the attacker management and password-reset capabilities over the members of the targeted privileged group. An attacker can exploit this to reset an administrator's password, compromise the account, and achieve a full realm takeover, leading to a complete compromise of confidentiality, integrity, and availability.
Correção
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