CVE-2025-43864: falha de alta gravidade em remix-run react-router
React Router allows a DoS via cache poisoning by forcing SPA mode
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26Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 7.5epss 20%
React Router is a router for React. Starting in version 7.2.0 and prior to version 7.5.2, it is possible to force an application to switch to SPA mode by adding a header to the request. If the application uses SSR and is forced to switch to SPA, this causes an error that completely corrupts the page. If a cache system is in place, this allows the response containing the error to be cached, resulting in a cache poisoning that strongly impacts the availability of the application. This issue has been patched in version 7.5.2.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Produtos afetados
remix-run · react-routerCVEs relacionadas — remix-run react-router
No mesmo produto, das mais perigosas para as menos.
CVE-2025-61686CRITICALReact Router has Path Traversal in File Session StorageEPSS 17.3%CVE-2025-31137HIGHRemix and React Router allow URL manipulation via Host / X-Forwarded-Host headersEPSS 1.2%CVE-2026-22029HIGHReact Router vulnerable to XSS via Open RedirectsEPSS 0.9%CVE-2025-43865HIGHReact Router allows pre-render data spoofing on React-Router framework modeEPSS 0.8%CVE-2026-55685HIGHReact Router: Unauthenticated Denial of Service via Inefficient Route MatchingEPSS 0.7%CVE-2026-21884HIGHReact Router SSR XSS in ScrollRestorationEPSS 0.5%
Referências
https://github.com/remix-run/react-router/blob/e6c53a0130559b4a9bd47f9cf76ea5b08a69868a/packages/react-router/lib/server-runtime/server.ts#L407https://github.com/remix-run/react-router/commit/c84302972a152d851cf5dd859ff332b354b70111https://github.com/remix-run/react-router/security/advisories/GHSA-f46r-rw29-r322