http2-bomb-analysis-paper

HTTP/2 Bomb: HPACK Indexed-Reference Amplification Chain Attack A high school student's independent technical deep-dive June 2026 TL;DR This repository contains my complete analysis of the HTTP/2 Bomb vulnerability CVE-2026-49975 / CVE-2026-47774, which chains two decades-old HTTP/2 primitives:...

CVE-2025-31650

TomcatKiller - CVE-2025-31650 🚨 Proof of Concept PoC for Apache Tomcat HTTP/2 DoS vulnerability CVE-2025-31650 This script triggers a memory exhaustion condition in Apache Tomcat by sending malformed priority headers over HTTP/2. 🎯 Affected Versions Apache Tomcat 9.0.76 – 9.0.102 Apache Tomcat...

cont-flood-poc

PoC for CVE-2023-45288 This is a proof-of-concept code for the CONTINUATION flood vulnerability found and documented by Bartek Nowotarski. The technical details are very well documented in his blog post here. While my focus was on the Go bug as documented by the researcher, this code should be...

Envoy-CPU-Exhaustion-Vulnerability-PoC

Envoy CPU Exhaustion Vulnerability PoC This repository contains a proof-of-concept PoC Python script to demonstrate the CPU exhaustion vulnerability in Envoy caused by a flood of CONTINUATION frames. Author: blackmagic 2024 Description Envoy is a cloud-native, open-source edge and service proxy...

TomcatKiller-CVE-2025-31650

TomcatKiller-CVE-2025-31650 A tool designed to detect the vulnerability CVE-2025-31650 in Apache Tomcat versions 10.1.10 to 10.1.39 This vulnerability allows an attacker to trigger a memory leak by sending specially crafted HTTP/2 requests with invalid priority headers, leading to a...

CVE-2024-52317

🚨🚨CVE-2024-52317🚨🚨 CVE-2024-52317 - Apache Tomcat HTTP/2 Data Leakage Vulnerability Overview CVE-2024-52317 is a vulnerability affecting Apache Tomcat's HTTP/2 implementation. The issue arises due to improper recycling of HTTP/2 request and response resources, potentially leading to data leakage...

CVE-2026-49975-POC

CVE-2026-49975 — HTTP/2 Bomb PoC Proof-of-concept exploit for CVE-2026-49975, a remote denial-of-service vulnerability in HTTP/2 server implementations. Discovered by Quang Luong Calif Security Research, disclosed June 2, 2026. For authorized security testing only. Do not use against infrastructu...

CVE-2023-44487

CVE-2023-44487 Basic vulnerability scanning to see if web servers may be vulnerable to CVE-2023-44487 This tool checks to see if a website is vulnerable to CVE-2023-44487 completely non-invasively. 1. The tool checks if a web server accepts HTTP/2 requests without downgrading them 2. If the web...

CVE-2023-44487

Rapid Reset Client Rapid Reset Client is a tool for testing mitigations and exposure to CVE-2023-44487 rapid reset DDoS attack vector. It implements a minimal HTTP/2 client that opens a single TCP socket, negotiates TLS, ignores the certificate, and exchanges SETTINGS frames. The client then send...

CVE_2023_44487-Rapid_Reset

CVE-2023-44487 HTTP/2 Rapid Reset Testing Tool - Enhanced Edition A comprehensive Python testing tool for CVE-2023-44487 , the HTTP/2 Rapid Reset vulnerability. This repository contains both attack testing and verification-focused tools. ⚠️ IMPORTANT DISCLAIMER This tool is for educational and...

http2-bomb

HTTP/2 Bomb — CVE-2026-49975 HTTP/2 Stream Amplification PoC · Docker · Web Console Vulnerability HTTP/2 allows multiplexing multiple streams over a single TCP connection. This PoC crafts specially formed HEADERS frames containing a large number of internal references, forcing the server to...

MadeYouReset_Tester

MadeYouReset Checker A lightweight Python script to detect whether a web server is potentially vulnerable to the MadeYouReset HTTP/2 denial-of-service vulnerability — tracked as CVE-2025-8671 CVSS 7.5 High. Background MadeYouReset is an HTTP/2 DoS vulnerability disclosed in August 2025 by...

CVE-2026-42945-NGINX-Rift-Toolkit

CVE-2026-42945 Nginx Rift Vulnerability Toolkit Comprehensive toolkit for scanning, patching, and testing CVE-2026-42945 - a critical RCE vulnerability in nginx Table of Contents Overview CVE Details Features Toolkit Components Requirements Installation Usage Workflow Examples Security...

tomcat-coyote: Apache Tomcat: HTTP/2 request headers not validated

Apache Tomcat did not validate HTTP/2 request headers, triggering unexpected application behavior, as applications may presume that header values exposed through the Servlet API would be valid...

Important: Red Hat Security Advisory: tomcat security update

An update for tomcat is now available for Red Hat Enterprise Linux 10.0 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

tomcat-coyote: Apache Tomcat: HTTP/2 request headers not validated

Apache Tomcat did not validate HTTP/2 request headers, triggering unexpected application behavior, as applications may presume that header values exposed through the Servlet API would be valid...

CVE-2026-23918-Double-free-Apache-httpd-mod_http2

CVE-2026-23918 - Apache httpd modhttp2 PoC This repository contains a proof-of-concept implementation written in Go for a pre-authentication memory corruption scenario affecting Apache httpd with modhttp2. The code in this repository demonstrates a spray-and-trigger approach against a vulnerable...

net/http: golang: Go net/http: Unencrypted HTTP/2 connections vulnerable to Denial of Service

A flaw was found in the net/http component of the Go standard library. When a server is configured to support unencrypted HTTP/2, it reads initial bytes from new connections to detect the HTTP/2 client preface. However, the ReadHeaderTimeout is not correctly applied during this process. This...

net/http: golang: Go net/http: Unencrypted HTTP/2 connections vulnerable to Denial of Service

A flaw was found in the net/http component of the Go standard library. When a server is configured to support unencrypted HTTP/2, it reads initial bytes from new connections to detect the HTTP/2 client preface. However, the ReadHeaderTimeout is not correctly applied during this process. This...

net/http: golang: Go net/http: Unencrypted HTTP/2 connections vulnerable to Denial of Service

A flaw was found in the net/http component of the Go standard library. When a server is configured to support unencrypted HTTP/2, it reads initial bytes from new connections to detect the HTTP/2 client preface. However, the ReadHeaderTimeout is not correctly applied during this process. This...