CVE Watch15 jul 2026

CVE-2026-9099

A flaw was found in Keycloak. A missing authorization check in the GroupResource.addChild() endpoint within the Admin REST API allows an aut

CVSS

7.7

Alto

EPSS

0.3%

p21

KEV

—

Exploit Today

0-100

Publicado: 25 jun 2026 · Última mod.: 15 jul 2026 · CWE-639

EPSS · 30d

0.3%EPSS · 30 días0.3%

2026-06-302026-07-21

Descripción técnica

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.

Referencias oficiales

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