#VU119890 Information disclosure in React - CVE-2025-55183
Published: December 12, 2025 / Updated: January 7, 2026
Vulnerability identifier: #VU119890
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2025-55183
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerable software:
React
React
Software vendor:
Facebook Inc.
Facebook Inc.
Description
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to the server may expose the source code of any server function when receiving a specially crafted HTTP request. A remote attacker can gain access to sensitive information.
The vulnerability affects the following components:
- react-server-dom-webpack (Meta)
- react-server-dom-turbopack (Meta)
- react-server-dom-parcel (Meta)
Successful exploitation requires the existence of a Server Function which explicitly or implicitly exposes a stringified argument.
Remediation
Install updates from vendor's website.