CVE-2026-92081

A flaw was found in fastify. When a route registers a response trailer and is served over HTTP/2, fastify incorrectly sets the 'Transfer-Encoding: chunked' header. This leads to an unhandled exception in Node.js, causing the server process to crash and resulting in a Denial of Service DoS. A...

CVE-2026-92081

fastify is a fast and low-overhead web framework for Node.js. In versions before 5.12.5, when a route registers a response trailer via reply.trailer and is served over HTTP/2, fastify unconditionally sets the Transfer-Encoding: chunked header, which is forbidden on HTTP/2, so Node.js throws while...

EUVD-2026-80315

fastify is a fast and low-overhead web framework for Node.js. In versions before 5.12.5, when a route registers a response trailer via reply.trailer and is served over HTTP/2, fastify unconditionally sets the Transfer-Encoding: chunked header, which is forbidden on HTTP/2, so Node.js throws while...

CVE-2026-92081

fastify (a Node.js web framework) versions before 5.12.5 are vulnerable to a Denial of Service when a route registers a response trailer via reply.trailer() and is served over HTTP/2 . The root cause is that fastify unconditionally sets the Transfer-Encoding: chunked header, which is forbidden on...

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-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...

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...

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...

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...

Proof-of-Concept-POC---CVE-2026-49975-HTTP-2-Bomb-

CVE-2026-49975 - HTTP/2 Bomb Proof of Concept Description CVE-2026-49975, also known as HTTP/2 Bomb , is a remote denial-of-service DoS vulnerability that affects most major web servers in their default HTTP/2 configuration. The vulnerability was discovered by OpenAI Codex by combining two...

CVE-2024-27316_poc

CVE-2024-27316 HTTP/2 CONTINUATION flood PoC Target server Apache httpd Start root@kitploit: docker-compose up -d Connectivity check httpd v2.4.58 vulnerable root@kitploit: curl --http2 -i --head http://localhost:3392/ curl --http2 -i --head -k https://localhost:3393/ httpd v2.4.59 fixed version...

CVE-2023-44487

HTTP/2 Rapid Reset: CVE-2023-44487 Description This repository contains proof-of-concept PoC code for the HTTP/2 Rapid Reset vulnerability identified as CVE-2023-44487. Vulnerability Overview CVE ID : CVE-2023-44487 Impact : Denial of Service DoS Affected Protocols : HTTP/2 Affected Components :...

HTTP-2-Rapid-Reset-DDos

HTTP/2 Rapid Reset DoS Attack Description This project demonstrates the HTTP/2 Rapid Reset Denial of Service DoS attack using a custom network topology created with Containernet. The attack exploits vulnerabilities in the HTTP/2 protocol to overwhelm a target server, rendering it unresponsive...

h2csmuggler

h2cSmuggler Description h2cSmuggler smuggles HTTP traffic past insecure edge-server proxypass configurations by establishing HTTP/2 cleartext h2c communications with h2c-compatible back-end servers, allowing a bypass of proxy rules and access controls. See my detailed write-up below for: Technica...

http-request-smuggler

HTTP Request Smuggler This Burp Suite extension automatically detects and exploits HTTP Request Smuggling vulnerabilities using advanced desynchronization techniques developed by PortSwigger researcher James Kettle. It supports comprehensive scanning for HTTP/1.1 and HTTP/2-downgrade desync...

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 enhanced version provides granular control over testing parameters, multiple attack patterns, and advanced monitoring capabilities...

http2smugl

http2smugl This tool helps to detect and exploit HTTP request smuggling in cases it can be achieved via HTTP/2 - HTTP/1.1 conversion by the frontend server. The scheme is as follows: 1. An attacker sends a crafted HTTP/2 request to the target server, which we call frontend. 2. The request is...

http2smugl

http2smugl Esta herramienta ayuda a detectar y explotar el contrabando de solicitudes HTTP en aquellos casos en que se puede lograr mediante la conversión HTTP/2 - HTTP/1.1 por parte del servidor frontend. El esquema es el siguiente: 1. Un atacante envía una solicitud HTTP/2 manipulada al servido...

nice-cve-poc

Nice CVE PoCs A collection of interesting CVE PoCs CVE-2023-44487 - HTTP/2 Rapid Reset Attack...

kubesploit

Kubesploit Kubesploit is a cross-platform post-exploitation HTTP/2 Command & Control server and agent dedicated for containerized environments written in Golang and built on top of Merlin project by Russel Van Tuyl @Ne0nd0g. Our Motivation While researching Docker and Kubernetes, we noticed that...