HAProxy Found Vulnerable to Critical HTTP Request Smuggling AttackThe Hacker News·Sep 8, 12:33 UTC · Sep 8, 2021VulnerabilityCVE-2021-4034660
Unpatched XRING Flaw in XQUIC Lets Remote Clients Crash HTTP/3 ServersThe Hacker News·Jul 10, 11:47 UTC · Jul 10, 2026Vulnerability in the wildCVE-2026-4253060