New HTTP/2 Bomb Vulnerability Allows Remote DoS on NGINX, Apache, IIS, Envoy & Cloudflare

Vira Manti

Published Jun 3, 2026, 9:56 AM UTC

Source: SecuritySource
- HTTP/2 Bomb just turned your favorite web servers into paperweights. NGINX, Apache, IIS, Envoy, and Cloudflare Pingora are all vulnerable to a remote DoS via default configs. It’s not a zero-day; it’s a configuration error. If you’re running these stacks without tuning HTTP/2 settings, you’re basically leaving the vault door open. The fix? Update and harden. Stop relying on default settings for production infrastructure. Bad OPSEC is still bad OPSEC, even if it’s not crypto-specific. Secure your digital house before the hype train derails it.