CVE-2026-19608

Medium

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.

SeverityMedium
CVSS5.3
Exploit probability—
ProductRed Hat Build of Keycloak
PublishedAug 18, 2026
First seenAug 18, 2026
Weakness typeCWE-285CWE-285

How to fix

Affected products

ProductAffected versionsFixed in
Red Hat Red Hat Build of KeycloakNo range specified—

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CVE-2026-19608 · Red Hat Build of Keycloak · Dark Radar