CVE-2025-55182
10
CVSS SCORE
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Description
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 Vector Details
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Affected Software Configurations
- a facebook react 19.0.0 * * * * * * *
- a facebook react 19.1.0 * * * * * * *
- a facebook react 19.1.1 * * * * * * *
- a facebook react 19.2.0 * * * * * * *
- a vercel next.js * * * * * node.js * *
- a vercel next.js 14.3.0 canary77 * * * node.js * *
- a vercel next.js 14.3.0 canary78 * * * node.js * *
- a vercel next.js 14.3.0 canary79 * * * node.js * *
- a vercel next.js 14.3.0 canary80 * * * node.js * *
- a vercel next.js 14.3.0 canary81 * * * node.js * *
Weaknesses (CWE)
- CWE-502
References & External Links
- https://react.dev/blog/2025/12/03/critical-security-vulnerability-in-react-server-components
- https://www.facebook.com/security/advisories/cve-2025-55182
- http://www.openwall.com/lists/oss-security/2025/12/03/4
- https://news.ycombinator.com/item?id=46136026
- https://aws.amazon.com/blogs/security/china-nexus-cyber-threat-groups-rapidly-exploit-react2shell-vulnerability-cve-2025-55182/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-55182