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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Meta react-server-dom-webpack
Default version status: unaffected
19.0.0 to ≤ 19.0.0affected19.1.0 to ≤ 19.1.1affected19.2.0 to ≤ 19.2.0affected
Meta react-server-dom-turbopack
Default version status: unaffected
19.0.0 to ≤ 19.0.0affected19.1.0 to ≤ 19.1.1affected19.2.0 to ≤ 19.2.0affected
Meta react-server-dom-parcel
Default version status: unaffected
19.0.0 to ≤ 19.0.0affected19.1.0 to ≤ 19.1.1affected19.2.0 to ≤ 19.2.0affected
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/ ↗
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-55182 ↗
- http://www.openwall.com/lists/oss-security/2025/12/03/4 ↗
- https://news.ycombinator.com/item?id=46136026 ↗