CVE-2026-9792 (GCVE-0-2026-9792)
Vulnerability from cvelistv5
Published
2026-05-28 03:44
Modified
2026-06-10 21:21
CWE
  • CWE-280 - Improper Handling of Insufficient Permissions or Privileges
Summary
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.
References
https://access.redhat.com/errata/RHSA-2026:25097 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:25098 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-9792 vdb-entry, x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2482459 issue-tracking, x_refsource_REDHAT
Impacted products
Vendor Product Version
Red Hat Red Hat build of Keycloak 26.6 Unaffected: 26.6.3-3   < *
    cpe:/a:redhat:build_keycloak:26.6::el9
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   Red Hat Red Hat build of Keycloak 26.6 Unaffected: 26.6-6   < *
    cpe:/a:redhat:build_keycloak:26.6::el9
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   Red Hat Red Hat build of Keycloak 26.6 Unaffected: 26.6-6   < *
    cpe:/a:redhat:build_keycloak:26.6::el9
Create a notification for this product.
   Red Hat Red Hat build of Keycloak 26.6.3     cpe:/a:redhat:build_keycloak:26.6::el9
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Show details on NVD website


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