#http/3


CDN Tsunami Attack Abuses HTTP/3 Translation for Up to 350x DoS Amplification

Aug 20, 2026 // 14:49

Cybersecurity researchers have disclosed two denial-of-service (DoS) attacks that exploit how major content delivery networks (CDNs) convert client-facing HTTP/3 traffic into HTTP/1.1 requests to the […]

Unpatched XRING Flaw in XQUIC Lets Remote Clients Crash HTTP/3 Servers

Jul 10, 2026 // 16:45

A single wrong variable on one line in XQUIC, Alibaba’s QUIC and HTTP/3 library, lets any remote client crash the server with a short burst […]