Information Exposure

Overview org.keycloak:keycloak-services is an open source identity and access management solution for modern applications and services. Affected versions of this package are vulnerable to Information Exposure in the identity-first login flow when Organizations are enabled. An attacker can obtain...

GHSA-RHGQ-F8X5-J2JC Keycloak's identity-first login flow exposes user information

A flaw was found in Keycloak. A remote attacker can exploit differential error messages during the identity-first login flow when Organizations are enabled. This vulnerability allows an attacker to determine the existence of users, leading to information disclosure through user enumeration...

CVE-2026-4633

A flaw was found in Keycloak. A remote attacker can exploit differential error messages during the identity-first login flow when Organizations are enabled. This vulnerability allows an attacker to determine the existence of users, leading to information disclosure through user enumeration...

CVE-2026-4633

CVE-2026-4633 affects Keycloak and is triggered in the identity-first login flow when Organizations are enabled. The issue arises from differential error messages that enable an attacker to determine whether a user exists, leading to information disclosure through user enumeration . The documente...

CVE-2026-4633 Keycloak: keycloak: user enumeration via differential error messages

A flaw was found in Keycloak. A remote attacker can exploit differential error messages during the identity-first login flow when Organizations are enabled. This vulnerability allows an attacker to determine the existence of users, leading to information disclosure through user enumeration...

CVE-2026-4633 Keycloak: keycloak: user enumeration via differential error messages

A flaw was found in Keycloak. A remote attacker can exploit differential error messages during the identity-first login flow when Organizations are enabled. This vulnerability allows an attacker to determine the existence of users, leading to information disclosure through user enumeration...

Keycloak security vulnerabilities

Keycloak is an open-source identity and access management solution developed by Keycloak. Keycloak has a security vulnerability, which stems from the discrepancy in error messages during the identity-first login process when organizations are enabled. This vulnerability could lead to user...

GHSA-R8JR-WG88-FQ5C Keycloak vulnerable to authorization bypass via the Admin API

A flaw was found in Keycloak. An authorization bypass vulnerability in the Keycloak Admin API allows any authenticated user, even those without administrative privileges, to enumerate the organization memberships of other users. This information disclosure occurs if the attacker knows the victim'...

PT-2026-24939

Name of the Vulnerable Software and Affected Versions Keycloak affected versions not specified Description An authorization bypass issue exists in the Keycloak Admin API. This allows any authenticated user, even those without administrative privileges, to enumerate the organization memberships of...

Authorization Bypass Through User-Controlled Key

Overview org.keycloak:keycloak-services is an open source identity and access management solution for modern applications and services. Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key via the Admin API when the Organizations feature is enabled...