Description
Quarkus is a Java framework for building cloud-native applications. Prior to versions 3.37.0, 3.36.3, 3.33.2.1, 3.33.3, 3.27.4.1, 3.27.5, and 3.20.6.2, Quarkus HTTP path-based authorization policies can be bypassed using encoded semicolons (%3B) to smuggle matrix parameters past the security layer, and using encoded slashes (%2F) or backslashes (%5C) to access protected static resources. This is a distinct issue from CVE-2026-39852, which addressed only literal semicolon stripping. Versions 3.37.0, 3.36.3, 3.33.2.1, 3.33.3, 3.27.4.1, 3.27.5, and 3.20.6.2 contain a patch.
Problem types
CWE-287: Improper Authentication
CWE-863: Incorrect Authorization
Product status
>= 3.33.0, < 3.33.2.1
>= 3.27.0, < 3.27.4.1
< 3.20.6.2
References
github.com/...uarkus/security/advisories/GHSA-qcxp-gm7m-4j5v