EUVD-2026-32708
GHSA-33j3-g875-37rp
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Lifecycle Timeline
1DescriptionNVD
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.
AnalysisAI
Policy enforcement bypass in Red Hat Build of Keycloak's Client Policies framework allows unauthenticated remote attackers to obtain OAuth2 tokens via the Resource Owner Password Credentials (ROPC) grant even when an explicit reject-ropc-grant executor is configured to block it. The bypass is triggered specifically when certain condition providers - client-type, client-roles, client-attributes, or client-scopes - are used within the same policy, causing silent executor skipping rather than a fail-closed enforcement error. …
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