CVE-2026-96446: Red Hat Build Of Keycloak

Medium severity, CVSS 4.2. EPSS: 0.2% chance of exploitation in the next 30 days.

A flaw was found in the Pushed Authorization Request PAR implementation of Keycloak. The issue occurs when the silent authentication path prompt=none is used, which allows the authorization process to skip certain steps if a user is already logged in. Due to this bypass, the security rule that ensures a pushed request URI is used only once is not enforced. An attacker could potentially reuse a request URI to obtain multiple authorization codes for a user who is already signed in, violating security standards like FAPI-2.

Affected products

• Red Hat Red Hat Build Of Keycloak
• Red Hat Red Hat Single Sign-On 7

Published 2026-09-23. Last modified 2026-09-26.