CVE-2026-39852

Quarkus is a Java framework for building cloud-native applications. In versions prior to 3.20.6.1, 3.27.3.1, 3.33.1.1, 3.35.1.1, 3.34.7, and 3.35.2, a path normalization inconsistency between the security layer and the routing layer allows unauthenticated or lower-privileged users to bypass HTTP...

CVE-2026-39852

Summary of CVE-2026-39852 : Quarkus exposes an authorization bypass due to path normalization mismatch between the security layer and RESTEasy Reactive routing, which preserves semicolons (matrix parameters) in the raw URL while routing drops them for endpoint matching. This allows unauthenticate...