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OpenAdvisories
Low · 3.1 CVE-2026-2366 BIT-keycloak-2026-2366EUVD-2026-11553GHSA-r8jr-wg88-fq5c

Keycloak: keycloak: information disclosure via authorization bypass in admin api

Published Mar 12, 2026 · Updated Apr 2, 2026 · Assigned by redhat

Description

A flaw was found in Keycloak. An authorization bypass vulnerability in the Keycloak Admin API allows any authenticated user, even those without administrative privileges, to enumerate the organization memberships of other users. This information disclosure occurs if the attacker knows the victim's unique identifier (UUID) and the Organizations feature is enabled.

Affected products

VendorProductAffectedFixed
Red Hat Red Hat build of Keycloak 26.4 — —
Red Hat Red Hat build of Keycloak 26.4.11 — —

Affected packages

EcosystemPackageAffectedFixedRecord
Maven org.keycloak:keycloak-js-admin-client <= 26.5.5 — GHSA-r8jr-wg88-fq5c
npm @keycloak/keycloak-admin-client <= 26.5.5 — GHSA-r8jr-wg88-fq5c

Advisories 1

References