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Medium · 6.5 CVE-2026-17059 EUVD-2026-48598GHSA-4w3x-69m8-478c

Keycloak-services: keycloak-services: information disclosure via role-users endpoint bypasses per-user view filter

Published Jul 24, 2026 · Updated Sep 16, 2026 · Assigned by redhat

Description

A flaw was found in the role-users endpoint of the keycloak-services library, which is the core component of the Keycloak identity and access management solution. The issue occurs because the system fails to check if an administrator has permission to view individual users when listing members of a role. This allows a restricted administrator to see private information, such as names and email addresses, for users they should not be able to access.

Affected products

VendorProductAffectedFixed
Red Hat Red Hat build of Keycloak 26.6 — —
Red Hat Red Hat build of Keycloak 26.6.7 — —
Red Hat Red Hat Data Grid 8 — —
Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack — —
Red Hat Red Hat Single Sign-On 7 — —

Advisories 1

References