Red Hat Quarkus HTTP security: information disclosure

High7.5CVE-2026-87743 · Published Sep 18, 2026 · updated Sep 22, 2026

A flaw was found in Quarkus HTTP security. An unauthenticated attacker can exploit a discrepancy in how paths are normalized between the security matcher and HTTP request dispatchers. This allows the attacker to craft a URL that the security matcher considers public, but which is then routed to a protected endpoint, leading to an authorization bypass and potential unauthorized access to sensitive information.