CVE-2026-9798 Keycloak: keycloak: brute-force protection bypass in ciba flow

A flaw was found in Keycloak, an open-source identity and access management solution. When a user account is temporarily locked due to repeated failed login attempts, an attacker with valid client credentials can exploit the Client-Initiated Backchannel Authentication CIBA flow to bypass this...

CVE-2026-9798 Keycloak: keycloak: brute-force protection bypass in ciba flow

A flaw was found in Keycloak, an open-source identity and access management solution. When a user account is temporarily locked due to repeated failed login attempts, an attacker with valid client credentials can exploit the Client-Initiated Backchannel Authentication CIBA flow to bypass this...

CVE-2026-9798

Keycloak is affected by a flaw where, after a user account is temporarily locked due to repeated failed logins, an attacker with valid client credentials can abuse the Client-Initiated Backchannel Authentication (CIBA) flow to bypass the lock. This allows continued authentication attempts and tok...

CVE-2026-9798

A flaw was found in Keycloak, an open-source identity and access management solution. When a user account is temporarily locked due to repeated failed login attempts, an attacker with valid client credentials can exploit the Client-Initiated Backchannel Authentication CIBA flow to bypass this...

Authentication Bypass by Primary Weakness

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 Authentication Bypass by Primary Weakness via the Client-Initiated Backchannel Authentication CIBA flow. An...

PT-2026-44193

Name of the Vulnerable Software and Affected Versions Keycloak affected versions not specified Description A flaw in the Client-Initiated Backchannel Authentication CIBA flow allows an attacker with valid client credentials to bypass brute-force protection. When a user account is temporarily lock...

Keycloak Server-Side Request Forgery (SSRF) vulnerability

A flaw was found in Keycloak’s CIBA feature where insufficient validation of client-configured backchannel notification endpoints could allow blind server-side requests to internal services...

CVE-2026-1518

A flaw was found in Keycloak’s CIBA feature where insufficient validation of client-configured backchannel notification endpoints could allow blind server-side requests to internal services...

CVE-2026-1518

A flaw was found in Keycloak’s CIBA feature where insufficient validation of client-configured backchannel notification endpoints could allow blind server-side requests to internal services. Mitigation To mitigate this issue, restrict administrative access to Keycloak instances. Ensure that only...

CVE-2026-1518 Keycloak: blind server-side request forgery (ssrf) via ciba backchannel notification endpoint in keycloak

A flaw was found in Keycloak’s CIBA feature where insufficient validation of client-configured backchannel notification endpoints could allow blind server-side requests to internal services...

PT-2026-5623

A flaw was found in Keycloak’s CIBA feature where insufficient validation of client-configured backchannel notification endpoints could allow blind server-side requests to internal services...