CVE-2025-55182
- State
- Published
- Severity
- 10.0 Critical
- Published
- Dec 3, 2025
- Updated
- Oct 7, 2026
- Reserved
- Aug 8, 2025
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 10.0 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H | Meta |
Weaknesses
- CWE-502 Deserialization of Untrusted Data
Affected Products
| Product | Versions |
|---|---|
react-server-dom-webpackMeta |
|
react-server-dom-turbopackMeta |
|
react-server-dom-parcelMeta |
|
References
- https://www.facebook.com/security/advisories/cve-2025-55182
- https://react.dev/blog/2025/12/03/critical-security-vulnerability-in-react-server-components
- https://aws.amazon.com/blogs/security/china-nexus-cyber-threat-groups-rapidly-exploit-react2shell-vulnerability-cve-2025-55182/media-coverage
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-55182government-resource
- http://www.openwall.com/lists/oss-security/2025/12/03/4
- https://news.ycombinator.com/item?id=46136026
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