React2Shell 😱 | Critical React RCE CVE-2025-55182 Explained | CVSS 10.0

Description

React2Shell (CVE-2025-55182) is one of the most critical vulnerabilities ever discovered in the React ecosystem 😱 This unauthenticated Remote Code Execution (RCE) flaw affects React Server Components and frameworks like Next.js using the App Router. With a CVSS score of 10.0, attackers can fully compromise servers using a single crafted request. In this video, I explain React2Shell step-by-step: • What React Server Components are • How the Flight protocol works • How unsafe deserialization leads to RCE • Why this vulnerability is so dangerous • Real-world attacks happening right now • Which React & Next.js versions are affected • How to patch and secure your application immediately ⚠️ This video is for educational and security awareness purposes only. If you are a React, Next.js, or full-stack developer — you MUST watch this and patch your apps now. 👇 TIMESTAMPS BELOW 👇 00:00 - Introduction: The Critical React Shell RCE Vulnerability 00:00:43 - CVSS 10.0 Severity: Details on CVE-2025-55182 00:01:16 - Affected Frameworks (Next.js, React Router) and Versions 00:03:40 - Technical Background: React Server Components (RSC) vs. Client Components 00:05:11 - Deep Dive: The React Flight Protocol (RFP) and Exploitation Vector 00:07:55 - Real-World Attack Impact and Data Validation Risks 00:08:58 - Detection: How to Identify if Your Project is Vulnerable 00:10:55 - Action Plan: Immediate Patching and Secret Key Rotation 00:13:57 - Required Patch Versions and Disclosure Timeline