Keycloak - SAML Core Package Signature Validation Flaw

A flaw exists in the SAML signature validation method within the Keycloak XMLSignatureUtil class. The method incorrectly determines whether a SAML signature is for the full document or only for specific assertions based on the position of the signature in the XML document, rather than the Referen...

Keycloak - Open Redirect

A misconfiguration flaw was found in Keycloak. This issue can allow an attacker to redirect users to an arbitrary URL if a 'Valid Redirect URI' is set to http://localhost or http://127.0.0.1, enabling sensitive information such as authorization codes to be exposed to the attacker, potentially...

KeyCloak - Information Exposure

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...

Keycloak < 24.0.5 - Broken Access Control

A flaw was found in Keycloak. Certain endpoints in Keycloak's admin REST API allow low-privilege users to access administrative functionalities. This flaw allows users to perform actions reserved for administrators, potentially leading to data breaches or system compromise. id: CVE-2024-3656 info...

Keycloak 10.0.0 - 18.0.0 - Cross-Site Scripting

Keycloak 10.0.0 to 18.0.0 contains a cross-site scripting vulnerability via the client-registrations endpoint. On a POST request, the application does not sanitize an unknown attribute name before including it in the error response with a 'Content-Type' of text/hml. Once reflected, the response i...

CVE-2026-40984 vulnerabilities

Vulnerabilities for packages: keycloak-fips, dependency-track-apiserver, nacos, infinispan, apicurio-registry, nacos-docker, airbyte-server, apicurio-registry-fips, camunda-zeebe, airbyte-server-fips, dependency-track, zipkin, keycloak...

GHSA-G3PR-3P32-FP23 vulnerabilities

Vulnerabilities for packages: keycloak-fips, dependency-track-apiserver, nacos, infinispan, apicurio-registry, nacos-docker, airbyte-server, apicurio-registry-fips, camunda-zeebe, airbyte-server-fips, dependency-track, zipkin, keycloak...

CVE-2026-40983 vulnerabilities

Vulnerabilities for packages: keycloak-fips, dependency-track-apiserver, nacos, infinispan, apicurio-registry, nacos-docker, airbyte-server, apicurio-registry-fips, camunda-zeebe, airbyte-server-fips, dependency-track, zipkin, keycloak...

GHSA-W737-WX49-QJ23 vulnerabilities

Vulnerabilities for packages: keycloak-fips, dependency-track-apiserver, nacos, infinispan, apicurio-registry, nacos-docker, airbyte-server, apicurio-registry-fips, camunda-zeebe, airbyte-server-fips, dependency-track, zipkin, keycloak...

CVE-2026-18967

A flaw was found in the SAML broker component of Keycloak, an identity and access management solution. When configured as a SAML broker using the IdP-Initiated flow, Keycloak fails to enforce the OneTimeUse condition in SAML assertions. This allows an attacker who captures a valid, unused asserti...

Keycloak <= 12.0.1 - request_uri Blind Server-Side Request Forgery (SSRF)

Keycloak 12.0.1 and below allows an attacker to force the server to request an unverified URL using the OIDC parameter requesturi. This allows an attacker to execute a server-side request forgery SSRF attack. id: CVE-2020-10770 info: name: Keycloak = 12.0.1 - requesturi Blind Server-Side Request...

EUVD-2026-53716

A flaw was found in the SAML broker component of Keycloak, an identity and access management solution. When configured as a SAML broker using the IdP-Initiated flow, Keycloak fails to enforce the OneTimeUse condition in SAML assertions. This allows an attacker who captures a valid, unused asserti...

CVE-2026-18967

The CVE affects Keycloak’s SAML broker component when configured as an IdP-Initiated flow. The vulnerability arises because OneTimeUse in SAML assertions is not enforced, allowing an attacker who captures a valid, unused assertion to replay it and potentially hijack a user’s session, granting una...

CVE-2026-18967 Keycloak-services: keycloak-services: saml onetimeuse assertion replay in idp-initiated broker flow

A flaw was found in the SAML broker component of Keycloak, an identity and access management solution. When configured as a SAML broker using the IdP-Initiated flow, Keycloak fails to enforce the OneTimeUse condition in SAML assertions. This allows an attacker who captures a valid, unused asserti...

CVE-2026-18967

A flaw was found in the SAML broker component of Keycloak, an identity and access management solution. When configured as a SAML broker using the IdP-Initiated flow, Keycloak fails to enforce the OneTimeUse condition in SAML assertions. This allows an attacker who captures a valid, unused asserti...

Important: Red Hat Security Advisory: Red Hat build of Keycloak 26.6.5 Images Security Update

New images are available for Red Hat build of Keycloak 26.6.5 and Red Hat build of Keycloak 26.6.5 Operator, running on OpenShift Container Platform 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...

Important: Red Hat Security Advisory: Red Hat build of Keycloak 26.4.14 Images Security Update

New images are available for Red Hat build of Keycloak 26.4.14 and Red Hat build of Keycloak 26.4.14 Operator, running on OpenShift Container Platform Red Hat build of Keycloak is an integrated sign-on solution, available as a Red Hat JBoss Middleware for OpenShift containerized image. The Red Ha...

keycloak-admin-ui: keycloak-admin-ui:Admin UI extension brute-force-user endpoint bypasses FGAPv2 user view restrictions

A vulnerability was discovered in Keycloak's Admin UI extension that allows certain administrative users to bypass security restrictions. When Fine-Grained Admin Permissions FGAPv2 are enabled, an administrator who should only be able to search for users but not view their full details can use a...

keycloak: org.keycloak.protocol.oidc: HTTP Parameter Pollution in OIDC redirect URI allows response parameter duplication - #GHI-604

A flaw was found in Keycloak, an open-source identity and access management solution. When a client application is configured to accept broad redirect Uniform Resource Identifiers URIs, a remote attacker can manipulate the authentication process by crafting a special web address. If a user clicks...

keycloak: Keycloak: Privilege escalation through hardcoded role mapper injection

A flaw was found in Keycloak. A highly privileged user with manage-clients permission can exploit this vulnerability by injecting a hardcoded role mapper into any client. This action allows the user to bypass existing scope restrictions and inject the realm-admin role into generated tokens,...