CVE-2025-55183
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.
- Published Dec 11, 2025
- CVSS 5.3 medium
- 64.2% chance of exploitation in the next 30 days (EPSS)
- Public exploit code is available
Affected software
In the news
- Critical vulnerability in React and Next.js (CVE-2025-55182) VulnCheck Blog ·