CVE-2025-55182

A pre-authentication remote code execution vulnerability exists in React Server Components versions 19.0.0, 19.1.0, 19.1.1, and 19.2.0 including the following packages: react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack. The vulnerable code unsafely deserializes payloads from HTTP requests to Server Function endpoints.

Affected products

React Server Components, React-Server-Dom-Parcel, React-Server-Dom-Turbopack, React-Server-Dom-Webpack

Facebook React

= 19.0.0, 19.1.0, 19.1.1, 19.2.0

Fix

Available

CVSS 3.1

10.0 CRITICAL

EPSS

99.6% (100th percentile)

Weakness

CWE-502

NVD status

Analyzed

Published

2025-12-03