CVE-2026-67611

OpenEMR up to version 8.2.0 is affected by an authentication bypass via the OAuth2 password grant flow exposed through an unauthenticated client registration endpoint. The vulnerability enables an attacker with valid credentials to register an OAuth2 client via the unauthenticated endpoint and th...

PT-2023-16006 · Keycloak +1 · Keycloak

Name of the Vulnerable Software and Affected Versions: Keycloak affected versions not specified Description: A flaw was found in Keycloak where it did not properly check client tokens for possible revocation in its client credential flow. This allows an attacker to access or modify potentially...

PT-2022-28260

Name of the Vulnerable Software and Affected Versions Keycloak affected versions not specified Description A reflected Cross Site Scripting issue has been identified. When a malicious request is sent to the "client registration endpoint", the error message is not properly escaped, allowing an...

PT-2021-11425 · Red Hat · Keycloak

Name of the Vulnerable Software and Affected Versions: Keycloak versions prior to 13.0.0 Description: A flaw was found in the client registration endpoint, allowing it to fetch information about PUBLIC clients, such as client secrets, without authentication. This could be an issue if the same...

CVE-2020-27838: Improper Authentication

A flaw was found in keycloak in versions prior to 13.0.0. The client registration endpoint allows fetching information about PUBLIC clients like client secret without authentication which could be an issue if the same PUBLIC client changed to CONFIDENTIAL later. The highest threat from this...