Threats Tagged 'cve-2026-3047'

A flaw was found in org.keycloak.broker.saml. When a disabled Security Assertion Markup Language (SAML) client is configured as an Identity Provider (IdP)-initiated broker landing target, it can still complete the login process and establish a Single Sign-On (SSO) session. This allows a remote attacker to gain unauthorized access to other enabled clients without re-authentication, effectively bypassing security restrictions.

Red Hat build of Keycloak is an integrated sign-on solution, available as a Red Hat JBoss Middleware for OpenShift containerized image. The Red Hat build of Keycloak for OpenShift image provides an authentication server that you can use to log in centrally, log out, and register. You can also manage user accounts for web applications, mobile applications, and RESTful web services. Red Hat build of Keycloak Operator for OpenShift simplifies deployment and management of Keycloak 26.4.10 clusters. This erratum releases new images for Red Hat build of Keycloak 26.4.10 for use within the OpenShift Container Platform cloud computing Platform-as-a-Service (PaaS) for on-premise or private cloud deployments, aligning with the standalone product release. Security fixes: * Keycloak SAML broker: Authentication bypass due to disabled SAML client completing IdP-initiated login (CVE-2026-3047) * Improper Enforcement of Disabled Identity Provider in IdentityBrokerService (Authentication Bypass) (CVE-2026-3009) * Unauthorized authentication via disabled SAML Identity Provider (CVE-2026-2603) * Unauthorized access via improper validation of encrypted SAML assertions (CVE-2026-2092) * Missing Check on Disabled Client for Docker Registry Protocol (CVE-2026-2733) * Denial of Service due to excessive SAMLRequest decompression (CVE-2026-2575) * Keycloak SAML brokering: Response delay due to unchecked NotOnOrAfter in SubjectConfirmationData (CVE-2026-1190) * Keycloak Authorization Header Parsing Leading to Potential Security Control Bypass (CVE-2026-0707)

Red Hat build of Keycloak 26.4.10 is a standalone server, based on the Keycloak project, that provides authentication and standards-based single sign-on capabilities for web and mobile applications. Security fixes: * Keycloak SAML broker: Authentication bypass due to disabled SAML client completing IdP-initiated login (CVE-2026-3047) * Improper Enforcement of Disabled Identity Provider in IdentityBrokerService (Authentication Bypass) (CVE-2026-3009) * Unauthorized authentication via disabled SAML Identity Provider (CVE-2026-2603) * Unauthorized access via improper validation of encrypted SAML assertions (CVE-2026-2092) * Missing Check on Disabled Client for Docker Registry Protocol (CVE-2026-2733) * Denial of Service due to excessive SAMLRequest decompression (CVE-2026-2575) * Keycloak SAML brokering: Response delay due to unchecked NotOnOrAfter in SubjectConfirmationData (CVE-2026-1190) * Keycloak Authorization Header Parsing Leading to Potential Security Control Bypass (CVE-2026-0707)

Red Hat has released security updates for the Red Hat build of Keycloak 26.2.14 to address multiple vulnerabilities related to SAML authentication. These include an authentication bypass caused by a disabled SAML client completing an IdP-initiated login, unauthorized authentication via a disabled SAML Identity Provider, and unauthorized access due to improper validation of encrypted SAML assertions. The update aligns with the standalone Keycloak product release and is intended for use within OpenShift Container Platform deployments.

Red Hat has released an important security advisory for Red Hat build of Keycloak 26.2.14 addressing multiple vulnerabilities related to SAML authentication. These include authentication bypass via a disabled SAML client during IdP-initiated login, unauthorized authentication through a disabled SAML Identity Provider, and unauthorized access due to improper validation of encrypted SAML assertions. These issues could allow attackers to bypass authentication controls. The advisory recommends updating to the fixed version after backing up existing installations.