{"cve":"CVE-2025-67779","nvd":{"published":"2025-12-12T00:15:46.797","modified":"2026-10-07T20:10:01.970","status":"Modified","description":"It was found that the fix addressing CVE-2025-55184 in React Server Components was incomplete and does not prevent a denial of service attack in a specific case. React Server Components versions 19.0.2, 19.1.3 and 19.2.2 are affected, allowing unsafe deserialization of payloads from HTTP requests to Server Function endpoints. This can cause an infinite loop that hangs the server process and may prevent future HTTP requests from being served.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-502","CWE-400"],"references":["https://react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components","https://www.facebook.com/security/advisories/cve-2025-67779"],"products":["facebook:react","vercel:next.js"],"source":"nvd","synced_at":"2026-10-19T22:16:40.427100871+00:00"},"epss":{"cve":"CVE-2025-67779","score":0.19986,"percentile":0.97416,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-7gmr-mq3h-m5h9","url":"https://osv.dev/vulnerability/GHSA-7gmr-mq3h-m5h9","summary":"Denial of Service Vulnerability in React Server Components","modified":"2025-12-12T16:56:15.116931Z","packages":[{"ecosystem":"npm","name":"react-server-dom-parcel","purl":"pkg:npm/react-server-dom-parcel","ranges":[">=19.0.2 <19.0.3"],"fixed":["19.0.3"]},{"ecosystem":"npm","name":"react-server-dom-parcel","purl":"pkg:npm/react-server-dom-parcel","ranges":[">=19.1.3 <19.1.4"],"fixed":["19.1.4"]},{"ecosystem":"npm","name":"react-server-dom-parcel","purl":"pkg:npm/react-server-dom-parcel","ranges":[">=19.2.2 <19.2.3"],"fixed":["19.2.3"]},{"ecosystem":"npm","name":"react-server-dom-turbopack","purl":"pkg:npm/react-server-dom-turbopack","ranges":[">=19.0.2 <19.0.3"],"fixed":["19.0.3"]},{"ecosystem":"npm","name":"react-server-dom-turbopack","purl":"pkg:npm/react-server-dom-turbopack","ranges":[">=19.1.3 <19.1.4"],"fixed":["19.1.4"]},{"ecosystem":"npm","name":"react-server-dom-turbopack","purl":"pkg:npm/react-server-dom-turbopack","ranges":[">=19.2.2 <19.2.3"],"fixed":["19.2.3"]},{"ecosystem":"npm","name":"react-server-dom-webpack","purl":"pkg:npm/react-server-dom-webpack","ranges":[">=19.0.2 <19.0.3"],"fixed":["19.0.3"]},{"ecosystem":"npm","name":"react-server-dom-webpack","purl":"pkg:npm/react-server-dom-webpack","ranges":[">=19.1.3 <19.1.4"],"fixed":["19.1.4"]},{"ecosystem":"npm","name":"react-server-dom-webpack","purl":"pkg:npm/react-server-dom-webpack","ranges":[">=19.2.2 <19.2.3"],"fixed":["19.2.3"]}]}],"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."]}