CVE-2025-55183
MEDIUMReact Server Components <19.3 - Info Disclosure
Title source: llmDescription
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.
Exploits (7)
nomisec
WORKING POC
4 stars
by StealthMoud · poc
https://github.com/StealthMoud/react-server-cve-lab
github
WORKING POC
2 stars
by adminlove520 · pythonpoc
https://github.com/adminlove520/CVE-Poc_All_in_One/tree/main/2025/CVE-2025-55183
Scores
CVSS v3
5.3
EPSS
0.1983
EPSS Percentile
95.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Details
Status
published
Products (5)
facebook/react
19.0.0 - 19.0.2
npm/react-server-dom-parcel
19.0.0 - 19.0.2npm
npm/react-server-dom-turbopack
19.0.0 - 19.0.2npm
npm/react-server-dom-webpack
19.0.0 - 19.0.2npm
vercel/next.js
15.6.0 (46 CPE variants)
Published
Dec 11, 2025
Tracked Since
Feb 18, 2026