CVE-2026-15565

Błąd w Undertow umożliwia zdalnemu atakującemu wywołanie braku pamięci na końcówce WebSocket, co prowadzi do ataku typu Denial of Service.

A flaw was found in Undertow. A remote attacker can cause Out of Memory on websockets endpoint without authentication on any @ServerEndpoint class that has any @OnMessage method. This allows an attacker to cause Denial of Service attack without authentication and using only a standard WebSocket handshake.