CVE-2026-19625 IBM Enterprise Build of Quarkus is affected by multiple vulnerabilities

When a Quarkus application has multiple endpoints secured by individual OIDC provider tenants, such as "/oidc-provider1" that is secured by the OIDC Provider 1 and "/oidc-provider2" that is secured by the OIDC Provider 2, and an optional token introspection cache is also enabled, then a valid tok...

CVE-2026-18208: Missing Authorization

A flaw was found in the OIDC token introspection endpoint of the keycloak-services component. Keycloak is an open-source identity and access management solution used to secure modern applications and services. The issue occurs when a confidential client, configured to receive signed JWT...

CVE-2026-37979

A flaw was found in Keycloak. This access control vulnerability in Keycloak's OpenID Connect OIDC token introspection endpoint allows a confidential client to bypass audience restrictions. An attacker-controlled client with valid credentials can retrieve sensitive token claims intended for other...

CVE-2026-41671: Improper Authentication

Admidio is an open-source user management solution. Prior to version 5.0.9, the OIDC token introspection endpoint /modules/sso/index.php/oidc/introspect always returns "active": true for every request, regardless of whether a valid token is provided, whether the token is expired, revoked, or...