High severity7.5OSV Advisory· Published Apr 25, 2025· Updated Apr 15, 2026
CVE-2025-43864
CVE-2025-43864
Description
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
react-routernpm | >= 7.2.0, < 7.5.2 | 7.5.2 |
Affected products
2Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-f46r-rw29-r322ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2025-43864ghsaADVISORY
- github.com/remix-run/react-router/blob/e6c53a0130559b4a9bd47f9cf76ea5b08a69868a/packages/react-router/lib/server-runtime/server.tsnvdWEB
- github.com/remix-run/react-router/commit/c84302972a152d851cf5dd859ff332b354b70111nvdWEB
- github.com/remix-run/react-router/security/advisories/GHSA-f46r-rw29-r322nvdWEB
News mentions
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