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New HTTP/2 Bomb Vulnerability Allows Remote DoS on NGINX, Apache, IIS, Envoy & Cloudflare
SecurityAI-assisted1 min read

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

A new remote denial-of-service vulnerability dubbed 'HTTP/2 Bomb' has been discovered affecting major web servers including NGINX, Apache HTTPD, Microsoft IIS, Envoy, and Cloudflare Pingora. The flaw exists in the default HTTP/2 configurations of these servers, making them vulnerable to DoS attacks. Notably, the vulnerability was discovered using OpenAI Codex.

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Utopia Tech

June 3, 2026 · 1 min read

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Cybersecurity researchers have discovered a remote denial-of-service exploit that affects major web servers, including NGINX, Apache HTTPD, Microsoft IIS, Envoy, and Cloudflare Pingora. The vulnerability has been codenamed HTTP/2 Bomb by Calif. "The vulnerable behavior exists in each server's default HTTP/2 configuration," the company said, adding it was discovered by OpenAI Codex by chaining

Originally published at thehackernews.com

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