CVE-2025-43864highCWE-755

CVE-2025-43864: fallo de gravedad alta en remix-run react-router

React Router allows a DoS via cache poisoning by forcing SPA mode

Publicada el

Seguir esta CVE+ Monitorear react-router+ Monitorear react-router

Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.

26Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

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
Productos afectados
remix-run · react-router
CVEs relacionadas — remix-run react-router

En el mismo producto, de las más peligrosas a las 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%