threat-intel CDN Tsunami Attack Abuses HTTP/3 Translation for Up to 350x DoS Amplification Researchers have uncovered two denial-of-service (DoS) attacks exploiting how Content Delivery Networks (CDNs) handle HTTP/3 traffic, leading to significant amplification of requests and causing severe performance issues for origin servers. The attacks, dubbed ‘CDN Tsunami,’ leverage a mismatch between CDN-supported HT… The Hacker News · Aug 20, 2026 High CVE-2026-14456CHSIcdnddoshttp3
vulnerability Unpatched XRING Flaw in XQUIC Lets Remote Clients Crash HTTP/3 Servers A remote client can crash HTTP/3 servers running XQUIC, Alibaba's HTTP/3 and QUIC library. The vulnerability, dubbed XRING, stems from an incorrect size calculation during table resizing within the QPACK header compressi… The Hacker News · Jul 10, 2026 High CVE-2026-42530httphttp3quic
vulnerability F5 Patches Two Critical NGINX Open Source Flaws Enabling Remote Code Execution F5 has released security patches to address two critical vulnerabilities (CVE-2026-42530 and CVE-2026-42055) in its NGINX Open Source and NGINX Plus products. These vulnerabilities, which allow for remote code execution,… The Hacker News · Jun 18, 2026 Critical CVE-2026-42530CVE-2026-42055CVE-2026-42945nginxcode executionremote vulnerability
