| パッケージ | 影響を受けるバージョン | 修正済みバージョン |
|---|---|---|
| org.keycloak:keycloak-services | ≥ 26.5.0, < 26.6.3≤ 26.4.7 | 26.6.3 |
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.
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