How to: CVE-2025-43864 (2025-04-25)
```
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.
```
- [pouriam23/DoS-via-cache-poisoning-by-forcing-SPA-mode-CVE-2025-43864-](https://github.com/pouriam23/DoS-via-cache-poisoning-by-forcing-SPA-mode-CVE-2025-43864-)