Bottom Line: Keycloak contains multiple unpatched medium-level vulnerabilities that allow authenticated attackers to bypass security measures and modify data.
Multiple vulnerabilities have been identified in Keycloak that an authenticated attacker can exploit remotely to circumvent security controls and manipulate data.
The vulnerabilities affect the open-source identity management system Keycloak. An attacker with existing authentication credentials can exploit these gaps to circumvent existing security mechanisms and modify records.
This is relevant for CISOs because Keycloak is frequently deployed as a central authentication and authorization platform in enterprise environments. A successful exploit of these vulnerabilities could compromise the integrity of identity management and enable unauthorized changes to user or access data.
It is recommended to promptly verify whether Keycloak is operated in your own infrastructure and to schedule security updates as soon as they become available. Until then, additional monitoring measures for Keycloak instances should be considered, particularly regarding suspicious changes to identity and access data.
Source: wid.cert-bund.de · Published 29 July 2026
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