Keycloak has an Authentication Bypass by Primary Weakness

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...

GHSA-Q6H7-XXP7-7429 Keycloak has an Authentication Bypass by Primary Weakness

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...

GHSA-FQJH-8322-VGRV Keycloak Generates an Error Message Containing Sensitive Information

A flaw was found in Keycloak. A remote, unauthenticated attacker can exploit this vulnerability by sending specially crafted SOAP requests to the SAML ECP Security Assertion Markup Language Enhanced Client or Proxy endpoint with varying client IDs. By observing distinct faultstrings in the...

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...

CVE-2026-9803

A flaw was found in Keycloak's ClientRegistrationAuth component. A remote unauthenticated attacker can exploit this vulnerability by sending a specially crafted POST request with a malformed 'Authorization: Bearer' header to any client registration endpoint. This can lead to an...

CVE-2026-9795

A flaw was found in Keycloak's Fine-Grained Admin Permissions FGAPv2 feature. An administrator with limited client management permissions can exploit this vulnerability to assign any realm role, including highly privileged roles, to a client's scope mapping. This bypasses intended security...

CVE-2026-9792

A flaw was found in Keycloak's Client Policies, specifically within the org.keycloak.protocol.oidc component. When certain condition providers client-type, client-roles, client-attributes, client-scopes are used to enforce security restrictions, the reject-ropc-grant executor is silently bypassed...

CVE-2026-9803 Keycloak: keycloak: denial of service via malformed authorization header

A flaw was found in Keycloak's ClientRegistrationAuth component. A remote unauthenticated attacker can exploit this vulnerability by sending a specially crafted POST request with a malformed 'Authorization: Bearer' header to any client registration endpoint. This can lead to an...

CVE-2026-9803

A flaw was found in Keycloak's ClientRegistrationAuth component. A remote unauthenticated attacker can exploit this vulnerability by sending a specially crafted POST request with a malformed 'Authorization: Bearer' header to any client registration endpoint. This can lead to an...

EUVD-2026-32719

A flaw was found in Keycloak's ClientRegistrationAuth component. A remote unauthenticated attacker can exploit this vulnerability by sending a specially crafted POST request with a malformed 'Authorization: Bearer' header to any client registration endpoint. This can lead to an...

CVE-2026-9803 Keycloak: keycloak: denial of service via malformed authorization header

A flaw was found in Keycloak's ClientRegistrationAuth component. A remote unauthenticated attacker can exploit this vulnerability by sending a specially crafted POST request with a malformed 'Authorization: Bearer' header to any client registration endpoint. This can lead to an...

CVE-2026-9803

A flaw was found in Keycloak's ClientRegistrationAuth component. A remote unauthenticated attacker can exploit this vulnerability by sending a specially crafted POST request with a malformed 'Authorization: Bearer' header to any client registration endpoint. This can lead to an...

EUVD-2026-32717

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

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...

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...

SUSE CVE-2026-42791

Improper Certificate Validation vulnerability in Erlang OTP publickey pubkeyocsp module allows forged OCSP responses signed with an expired responder certificate to be accepted as valid. OCSP response verification in pubkeyocsp:verifyresponse/5 and pubkeyocsp:isauthorizedresponder/3 in...

SUSE CVE-2026-44838

RabbitMQ is a messaging and streaming broker. From 4.2.0 to before 4.2.4, RabbitMQ's MQTT plugin allows for topic-level authorization using regular expressions with variable substitution. Administrators can create patterns such as ^clientid-sensors$ to restrict user access to topics that include...

SUSE CVE-2026-45877

In the Linux kernel, the following vulnerability has been resolved: HID: intel-ish-hid: fix NULL-ptr-deref in ishtpbusremoveallclients During a warm reset flow, the cl-device pointer may be NULL if the reset occurs while clients are still being enumerated. Accessing cl-device-referencecount witho...