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.
- CVSS 3.1
- 5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - EPSS
- 64% chance of exploitation in the next 30 days; higher than 99% of CVEs (scores of 2026-10-25)
- Published
- Modified
- Record from
- the NVD, synced
Affected
- facebook:react
- vercel:next.js
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-925w-6v3x-g4j4 | npm | react-server-dom-parcel | >=19.0.0 <19.0.2 | 19.0.2 |
| GHSA-925w-6v3x-g4j4 | npm | react-server-dom-turbopack | >=19.0.0 <19.0.2 | 19.0.2 |
| GHSA-925w-6v3x-g4j4 | npm | react-server-dom-webpack | >=19.0.0 <19.0.2 | 19.0.2 |
| GHSA-925w-6v3x-g4j4 | npm | react-server-dom-parcel | >=19.1.0 <19.1.3 | 19.1.3 |
| GHSA-925w-6v3x-g4j4 | npm | react-server-dom-parcel | >=19.2.0 <19.2.2 | 19.2.2 |
| GHSA-925w-6v3x-g4j4 | npm | react-server-dom-turbopack | >=19.1.0 <19.1.3 | 19.1.3 |
| GHSA-925w-6v3x-g4j4 | npm | react-server-dom-turbopack | >=19.2.0 <19.2.2 | 19.2.2 |
| GHSA-925w-6v3x-g4j4 | npm | react-server-dom-webpack | >=19.1.0 <19.1.3 | 19.1.3 |
| GHSA-925w-6v3x-g4j4 | npm | react-server-dom-webpack | >=19.2.0 <19.2.2 | 19.2.2 |