Skip to content
OpenAdvisories
Medium · 6.5 CVE-2026-9705 BIT-keycloak-2026-9705EUVD-2026-39474GHSA-q929-g23j-2rc7GHSA-r7rc-c989-86g6

Keycloak: keycloak: attacker can re-enable and take over disabled clients via registration access token

Published Jun 25, 2026 · Updated Jun 29, 2026 · Assigned by redhat

Description

A flaw was found in Keycloak's client registration service. A remote attacker, possessing a previously issued Registration Access Token (RAT), could exploit this vulnerability to re-enable a client that an administrator had explicitly disabled. This bypasses security controls, allowing the attacker to reset the client's secret and potentially regain privileged API access. The primary impact includes unauthorized information disclosure and potential integrity compromise.

Affected products

VendorProductAffectedFixed
Red Hat Red Hat build of Keycloak 26.4 — —
Red Hat Red Hat build of Keycloak 26.4.13 — —
Red Hat Red Hat build of Keycloak 26.6 — —
Red Hat Red Hat build of Keycloak 26.6.4 — —

Affected packages

EcosystemPackageAffectedFixedRecord
Maven org.keycloak:keycloak-services < 26.6.4 26.6.4 GHSA-r7rc-c989-86g6

Advisories 1

References