{"cve":"CVE-2025-55182","nvd":{"published":"2025-12-03T16:15:56.463","modified":"2026-10-18T17:10:00.110","status":"Analyzed","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_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","score":10.0},"cwes":["CWE-502"],"references":["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/"],"products":["facebook:react","vercel:next.js"],"source":"nvd","synced_at":"2026-10-19T22:16:02.354564667+00:00"},"epss":{"cve":"CVE-2025-55182","score":0.99802,"percentile":0.99957,"date":"2026-10-25"},"kev":{"cve":"CVE-2025-55182","date_added":"2025-12-05","due_date":"2025-12-12","vendor":"Meta","product":"React Server Components","known_ransomware":true},"osv":[{"id":"GHSA-fv66-9v8q-g76r","url":"https://osv.dev/vulnerability/GHSA-fv66-9v8q-g76r","summary":"React Server Components are Vulnerable to RCE","modified":"2025-12-09T17:46:07.154758Z","packages":[{"ecosystem":"npm","name":"react-server-dom-webpack","purl":"pkg:npm/react-server-dom-webpack","ranges":[">=19.0.0 <19.0.1"],"fixed":["19.0.1"]},{"ecosystem":"npm","name":"react-server-dom-webpack","purl":"pkg:npm/react-server-dom-webpack","ranges":[">=19.1.0 <19.1.2"],"fixed":["19.1.2"]},{"ecosystem":"npm","name":"react-server-dom-webpack","purl":"pkg:npm/react-server-dom-webpack","ranges":[">=19.2.0 <19.2.1"],"fixed":["19.2.1"]},{"ecosystem":"npm","name":"react-server-dom-turbopack","purl":"pkg:npm/react-server-dom-turbopack","ranges":[">=19.0.0 <19.0.1"],"fixed":["19.0.1"]},{"ecosystem":"npm","name":"react-server-dom-turbopack","purl":"pkg:npm/react-server-dom-turbopack","ranges":[">=19.1.0 <19.1.2"],"fixed":["19.1.2"]},{"ecosystem":"npm","name":"react-server-dom-turbopack","purl":"pkg:npm/react-server-dom-turbopack","ranges":[">=19.2.0 <19.2.1"],"fixed":["19.2.1"]},{"ecosystem":"npm","name":"react-server-dom-parcel","purl":"pkg:npm/react-server-dom-parcel","ranges":[">=19.0.0 <19.0.1"],"fixed":["19.0.1"]},{"ecosystem":"npm","name":"react-server-dom-parcel","purl":"pkg:npm/react-server-dom-parcel","ranges":[">=19.1.0 <19.1.2"],"fixed":["19.1.2"]},{"ecosystem":"npm","name":"react-server-dom-parcel","purl":"pkg:npm/react-server-dom-parcel","ranges":[">=19.2.0 <19.2.1"],"fixed":["19.2.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}