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.

Score
CVSS 3.1 6.5 Medium
Status
Modified - secalert@redhat.com
Published
2026-05-28
Last modified
2026-10-26
Weaknesses
CWE-280

Affected products

References

 
 
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