{"cve":"CVE-2025-43865","nvd":{"published":"2025-04-25T01:15:43.270","modified":"2026-06-17T09:24:40.220","status":"Deferred","description":"React Router is a router for React. In versions on the 7.0 branch prior to version 7.5.2, it's possible to modify pre-rendered data by adding a header to the request. This allows to completely spoof its contents and modify all the values ​​of the data object passed to the HTML. This issue has been patched in version 7.5.2.","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:L/A:H","score":8.2},"cwes":["CWE-345"],"references":["https://github.com/remix-run/react-router/blob/e6c53a0130559b4a9bd47f9cf76ea5b08a69868a/packages/react-router/lib/server-runtime/routes.ts#L87","https://github.com/remix-run/react-router/commit/c84302972a152d851cf5dd859ff332b354b70111","https://github.com/remix-run/react-router/security/advisories/GHSA-cpj6-fhp6-mr6j"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:01:11.054312287+00:00"},"epss":{"cve":"CVE-2025-43865","score":0.00815,"percentile":0.57065,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-cpj6-fhp6-mr6j","url":"https://osv.dev/vulnerability/GHSA-cpj6-fhp6-mr6j","summary":"React Router allows pre-render data spoofing on React-Router framework mode","modified":"2026-02-03T03:07:14.588572Z","packages":[{"ecosystem":"npm","name":"react-router","purl":"pkg:npm/react-router","ranges":[">=7.0.0-pre.0 <7.5.2"],"fixed":["7.5.2"]}]}],"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."]}