CVE-2025-55183
Fixed upstream EPSS 64%CVSS 5.3
An information leak vulnerability exists in specific configurations of React Server Components versions 19.0.0, 19.0.1 19.1.0, 19.1.1, 19.1.2, 19.2.0 and 19.2.1, including the following packages: react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack. A specifically crafted HTTP request sent to a vulnerable Server Function may unsafely return the source code of any Server Function. Exploitation requires the existence of a Server Function which explicitly or implicitly exposes a stringified argument.
Products: Meta react-server-dom-webpack, Meta react-server-dom-turbopack, Meta react-server-dom-parcel
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| npm | react-server-dom-parcel | 19.0.2 |
| npm | react-server-dom-parcel | 19.1.3 |
| npm | react-server-dom-parcel | 19.2.2 |
| npm | react-server-dom-turbopack | 19.0.2 |
| npm | react-server-dom-turbopack | 19.1.3 |
| npm | react-server-dom-turbopack | 19.2.2 |
| npm | react-server-dom-webpack | 19.0.2 |
| npm | react-server-dom-webpack | 19.1.3 |
| npm | react-server-dom-webpack | 19.2.2 |