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CVE-2026-9792

6.5 medium SSVC exploitation: none Modified
NVD · CVE.org

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.

Fix

Patch, vendor advisory and mitigation references on NVD 2

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 6.5 · redhatNVD modified 2026-10-26 12:10

Affected (CPE criteria) 1

  • cpe:2.3:a:redhat:build_of_keycloak:-:*:*:*:-:*:*:*

References 6