Name: CVE-2025-55182: Deserialization of Untrusted Data
Creator: Rapid7
Published: 2025-12-03T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2025-55182, CWE-502, Exploited in the Wild, CISA KEV Exploit, Rapid7 Critical, Metasploit Module, Used with Ransomware, CVSS 10, EPSS 0.99802, CISA KEV

Emergent ThreatCVE-2025-55182:React2Shell (CVE-2025-55182) - Critical unauthenticated RCE affecting React Server ComponentsBlog ↗

A pre-authentication remote code execution vulnerability exists in React Server Components versions 19.0.0, 19.1.0, 19.1.1, and 19.2.0 including the following packages: react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack. The vulnerable code unsafely deserializes payloads from HTTP requests to Server Function endpoints.

CVSS Details

CVSS 3.1 Base Score: 10
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Meta React	—	Upgrade react-server-dom-* packages to version 19.0.1, 19.1.2, 19.2.1 or later	Dec 4, 2025	Dec 3, 2025

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CVSS Details

Covered by Rapid7

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