CVE-2026-50577 ePA 3.x Integration: AES-GCM Nonce Reuse via Frozen VAU Request Counter

ePA 3.x Integration implements the authorization workflow and writes Medical Information Objects to Germany's electronic patient record. Prior to 1.3.0, ePA 3.x Integration leaves requestcounter unchanged in app/vau/VAUProtokoll.py while constructing VAU messages. The frozen client request counte...