CVE-2026-79651

CVE-2026-79651 is an unauthenticated denial-of-service vulnerability in the keycloak-services component of Keycloak, specifically in its theme localization endpoints . The root cause is that the system accepts arbitrary locale tags from unauthenticated requests and stores them in a permanent in-m...

CVE-2026-74909 Keycloak-services: keycloak-services: incomplete fix for cve-2026-15573 allows policy enforcer bypass via percent-encoded uri segments

Keycloak provides a policy enforcer to protect applications by matching incoming web requests against defined security policies. A flaw was found where the enforcer fails to correctly normalize web addresses that contain special encoded characters, such as those representing semicolons or directo...

CVE-2026-18212 Keycloak-services: keycloak-services: saml redirect deflate helpers leak native zlib state

A flaw was found in the SAML Redirect Binding implementation of Keycloak, an open-source identity and access management solution. The issue occurs because the custom DEFLATE compression and decompression helpers fail to release native zlib memory after use. An unauthenticated attacker can exploit...

CVE-2026-18212

Keycloak 's SAML Redirect Binding implementation is affected by a native memory leak. The custom DEFLATE compression and decompression helpers fail to release native zlib memory after processing, so an unauthenticated attacker can send repeated malformed SAML requests to exhaust native memory and...

CVE-2026-19607

A flaw was found in the first-broker-login flow of the keycloak-services component. This component handles the initial authentication and account linking when a user logs in via an external identity provider. The issue allows an attacker to register a matching username on an external provider to...

CVE-2026-79651

A flaw was found in the theme localization endpoints of the keycloak-services component, which is the core service responsible for authentication flows and theme management in Keycloak. The issue occurs because the system accepts arbitrary locale tags from unauthenticated requests and stores them...

CVE-2026-92358 Keycloak-services: keycloak-services: residual cross-browser account-link proof allows silent re-linking

A flaw was found in the first broker login flow of Keycloak. When a user confirms an account-linking request from a different browser, a temporary proof is created to validate the link. However, this proof is not properly cleared after the link is established or when the user later manually remov...

CVE-2026-92358

Keycloak 's first broker login flow contains a flaw where a temporary proof created during a cross-browser account-linking request is not properly cleared after the link is established or manually removed. An attacker who controls the external identity can exploit this residual proof to silently ...

CVE-2026-19607: Improper Authentication

A flaw was found in the first-broker-login flow of the keycloak-services component. This component handles the initial authentication and account linking when a user logs in via an external identity provider. The issue allows an attacker to register a matching username on an external provider to...

CVE-2026-79651: Uncontrolled Resource Consumption

A flaw was found in the theme localization endpoints of the keycloak-services component, which is the core service responsible for authentication flows and theme management in Keycloak. The issue occurs because the system accepts arbitrary locale tags from unauthenticated requests and stores them...

PT-2026-93803

Name of the Vulnerable Software and Affected Versions Keycloak affected versions not specified Description A flaw exists in the theme localization endpoints of the keycloak-services component, which manages authentication flows and themes. The system accepts arbitrary locale tags from...

PT-2026-93821

Name of the Vulnerable Software and Affected Versions keycloak-services affected versions not specified Description A flaw exists in the first-broker-login flow of the keycloak-services component, which manages initial authentication and account linking for users logging in via external identity...

CVE-2026-89298

A flaw in Keycloak 's Dynamic Client Registration service allows a user with the view-clients role to retrieve a client's confidential secret in cleartext via the client registration GET endpoint. The root cause is a failure to mask sensitive information when returning client details. A read-only...

com.github.wnameless.spring.boot.up:spring-boot-up-embedded-keycloak (26.7.3.0), com.github.wnameless.spring.boot.up:spring-boot-up-keycloak-plugin (26.7.3.0) +76 more potentially affected by CVE-2026-19729 via org.keycloak:keycloak-services (>=26.7.0, <=26.7.2)

org.keycloak:keycloak-services MAVEN version =26.7.0, =6.0.0, =6.0.0, =2.8.4, =3.0.0, =0.7.0, =2.3.0, =1.11.30, =1.3.0, =0.3.0, =0.1.3, =1.3.0, =1.4.0 - io.github.hqqw2h-lgtm:keycloak-services-social-wecom 0.1.0 and more Source cves: CVE-2026-19729 Source advisory: MEND:CVE-2026-19729...

CVE-2026-19729 Keycloak-services: keycloak-services: incomplete fix for arbitrary filesystem path probing via keystore parameters

A flaw was found in the key provider component of the keycloak-services library, which is the core engine for the Red Hat Build of Keycloak. The issue occurs because a previous fix for path probing was incomplete, allowing a realm administrator to still submit arbitrary filesystem paths as keysto...

CVE-2026-19729

CVE-2026-19729 is an incomplete fix for CVE-2026-9083 in the key provider component of the keycloak-services library (core engine of the Red Hat Build of Keycloak). A relative path traversal remains, allowing a realm administrator to submit arbitrary filesystem paths as keystore parameters and de...

CVE-2026-19729 Keycloak-services: keycloak-services: incomplete fix for arbitrary filesystem path probing via keystore parameters

A flaw was found in the key provider component of the keycloak-services library, which is the core engine for the Red Hat Build of Keycloak. The issue occurs because a previous fix for path probing was incomplete, allowing a realm administrator to still submit arbitrary filesystem paths as keysto...

CVE-2026-19729: Improper Limitation of a Pathname to a Restricted Directory

A flaw was found in the key provider component of the keycloak-services library, which is the core engine for the Red Hat Build of Keycloak. The issue occurs because a previous fix for path probing was incomplete, allowing a realm administrator to still submit arbitrary filesystem paths as keysto...

BIT-KEYCLOAK-2026-18573 Keycloak-services: keycloak-services: client access-type policy condition bypass during client update

A flaw was found in the keycloak-services component of Keycloak, which is used for managing authentication and authorization flows. The issue occurs when a realm administrator configures client policies to enforce specific authentication requirements on confidential clients. Due to improper...

BIT-KEYCLOAK-2026-18572 Keycloak-services: keycloak-services: uma claim token can override authorization time-policy evaluation attributes

Keycloak provides authorization services that allow administrators to restrict access to resources based on time policies for example, only allowing access during business hours. A flaw was discovered where a user can include a fake time value in their authorization request that overrides the...