Vulnerability Details CVE-2026-9792
A flaw was found in Keycloak's Client Policies, specifically within the `org.keycloak.protocol.oidc` component. When certain condition providers (client-type, client-roles, client-attributes, client-scopes) are used to enforce security restrictions, the `reject-ropc-grant` executor is silently bypassed. This allows an unauthenticated remote attacker to obtain tokens via a Resource Owner Password Credentials (ROPC) grant, even when a policy is explicitly configured to block it. This bypass can lead to unauthorized access and information disclosure.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 11.2%
CVSS Severity
CVSS v3 Score 6.5
References
Products affected by CVE-2026-9792
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cpe:2.3:a:redhat:build_of_keycloak:-