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.
Metrics
CVSS 3.1 10.0/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Meta | react-server-dom-webpack | >= 19.0.0, <= 19.0.0; >= 19.1.0, <= 19.1.1; >= 19.2.0, <= 19.2.0 |
| Meta | react-server-dom-turbopack | >= 19.0.0, <= 19.0.0; >= 19.1.0, <= 19.1.1; >= 19.2.0, <= 19.2.0 |
| Meta | react-server-dom-parcel | >= 19.0.0, <= 19.0.0; >= 19.1.0, <= 19.1.1; >= 19.2.0, <= 19.2.0 |
References
- https://react.dev/blog/2025/12/03/critical-security-vulnerability-in-react-server-componentsPatch, Vendor Advisory
- https://www.facebook.com/security/advisories/cve-2025-55182Vendor Advisory
- http://www.openwall.com/lists/oss-security/2025/12/03/4Mailing List, Patch, Third Party Advisory
- https://news.ycombinator.com/item?id=46136026Issue Tracking
- https://aws.amazon.com/blogs/security/china-nexus-cyber-threat-groups-rapidly-exploit-react2shell-vulnerability-cve-2025-55182/Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-55182US Government Resource
Timeline
- Published
- Dec 3, 2025
- Last modified
- Oct 18, 2026
- Added to CISA KEV
- Dec 5, 2025
- NVD status
- Analyzed