CVE-2025-29927-POC

CVE-2025-29927-POC Introduction This repository contains a Proof of Concept PoC for CVE-2025-29927, a hypothetical vulnerability demonstrating a flaw in middleware handling within a web application. The PoC illustrates how a specially crafted HTTP request can bypass redirection logic to access...

exploit-CVE-2025-29927

Exploit for CVE-2025-29927 Next.js - Authorization Bypass Like this repo? Give us a ⭐! For educational and authorized security research purposes only. Exploit Author @UNICORDev by @NicPWNs and @Dev-Yeoj Vulnerability Description Next.js is a React framework for building full-stack web application...

CVE-2025-29927-Nextjs-Bypass-PoC

PoC: CVE-2025-29927 - Next.js Middleware Bypass This repository contains a Proof of Concept PoC demonstrating how to bypass middleware security checks in Next.js v13.5.6 by exploiting a vulnerability related to internal HTTP headers. Vulnerability Overview: CVE-2025-29927 What is it? CVE-2025-299...

Vuln-Next.js-CVE-2025-29927

npx [email protected] Install packages npm install -D @types/bcrypt npm install mysql2 npm install jose npm install -D @types/jsonwebtoken Prepare DB CREATE TABLE users id INT PRIMARY KEY AUTOINCREMENT, username VARCHAR255 UNIQUE NOT NULL, password VARCHAR255 NOT NULL ; Run npm run dev...

Next.Js-middleware-bypass-vulnerability-CVE-2025-29927

A basic proof of concept of the CVE-2025-29927 vulnerability that allows to bypass the middleware scripts. Details: Read Here This uses Next.js version 15.2.2. The vulnerability allows the user to bypass the middleware script which contains the verification and can access the admin page without...

NextJS_CVE-2025-29927

Next.js Authorization Bypass Demo This application demonstrates the x-middleware-subrequest vulnerability in Next.js 13.4.19, which allows bypassing middleware protection. Setup 1. Install dependencies: npm install 2. Start the development server: npm run dev Vulnerability Demonstration The...

CVE-2025-29927

CVE-2025-29927: Next.js Middleware Bypass Vulnerability This repository demonstrates the CVE-2025-29927 vulnerability in Next.js where the internal header x-middleware-subrequest can be used to bypass middleware checks like authentication. Vulnerability Details Next.js uses an internal header...

test-cve-2025-29927

Test app to exploit CVE-2025-29927 The NextJS app has cookie based authentification and a middleware to prevent unauthorized access to /admin page. To start the app run yarn then yarn dev To get unauthorized access to /admin page by using CVE-2025-29927 vulnerability run a proxy-server which adds...

next-attack

This is a Next.js project bootstrapped with create-next-app. Testing the vulnerability First, you can confirm that the middleware works and should redirect the user: curl http://localhost:3000/api/admin Then, you can show how the middleware is being bypassed with the followign command: curl -H...

CVE-2025-29927

CVE-2025-29927 Reproduction and fix of the CVE-2025-29927 vulnerability. git clone [email protected]:Bongni/CVE-2025-29927.git cd CVE-2025-29927 In vulnerable/ there is a version of the application that is vulnerable to the attack. In fixed/ there is a version of the application that is...

CVE-2026-41452-PoC

CVE-2026-41452 — Krayin CRM Installer Auth Bypass → Admin Takeover CVSS 9.8 Critical · CWE-287 / CWE-306 · Jiva writeup · VulnCheck Summary Krayin CRM's installer exposes POST /install/api/admin-config-setup plus run-migration, run-seeder without CSRF protection withoutMiddleware'web' group. The...

cve-2025-29927

CVE-2025-29927 1. go to /api/flag 2. add x-middleware-subrequest: src/middleware:src/middleware:src/middleware:src/middleware:src/middleware as header 3. see response...

CVE-2025-29927-PoC

CVE-2025-29927: Next.js Middleware Bypass Vulnerability PoC This repository demonstrates the CVE-2025-29927 vulnerability in Next.js, where the internal header x-middleware-subrequest can be used to bypass middleware checks like authentication. Affected Versions Next.js 15.x 15.2.3 Next.js 14.x...

cve-2025-29927-lab

CVE-2025-29927 Lab Minimal reproduction lab for CVE-2025-29927 — Next.js middleware authorization bypass CVSS 9.1. Companion to: N-Day Analysis writeup on Medium What this is A Next.js 15.2.2 app vulnerable with a cookie-gated /dashboard route. The middleware auth check can be bypassed by sending...

CVE-2025-29927

CVE-2025-29927 Next.js Middleware Bypass Scanner CVE-2025-29927 CVE-2025-29927 is a specialized security tool for detecting the Next.js middleware bypass vulnerability CVE-2025-29927 affecting Next.js versions 11.1.4 through 15.2.2. This critical vulnerability allows attackers to bypass security...

OpenNext Cloudflare: Cache interception can bypass middleware protection for encoded paths

Summary When cache interception is enabled, @opennextjs/cloudflare can interpret percent-encoded paths differently during middleware matching and cache lookup. An encoded request may fail to match authorization middleware, then be decoded into the cache key of a protected route. The cached respon...

GHSA-2VC4-C4R6-P6V6 OpenNext Cloudflare: Cache interception can bypass middleware protection for encoded paths

Summary When cache interception is enabled, @opennextjs/cloudflare can interpret percent-encoded paths differently during middleware matching and cache lookup. An encoded request may fail to match authorization middleware, then be decoded into the cache key of a protected route. The cached respon...

middleforce

MiddleForce 🔍 Overview MiddleForce is a specialized security testing tool designed to detect and exploit the CVE-2025-29927 vulnerability in Next.js middleware. This tool helps security professionals identify applications vulnerable to middleware bypass attacks. 🚀 Features Middleware Bypass...

CVE-2026-100409 OpenNext Cloudflare: Cache interception can bypass middleware protection for encoded paths

OpenNext Cloudflare is an open Next.js adapter for Cloudflare. From 0.3.0 until 1.20.2, applications that enable enableCacheInterception, rely on middleware for access control, and have a matching cached protected route process encoded pathnames inconsistently between middleware matching and cach...

CVE-2026-100409

The OpenNext Cloudflare adapter (versions 0.3.0 through 1.20.2 ) is vulnerable to an authorization bypass when enableCacheInterception is active. The root cause is an inconsistency in how encoded pathnames are processed between middleware matching and cache lookup. An unauthenticated attacker can...