High severity8.2OSV Advisory· Published Apr 25, 2025· Updated Apr 15, 2026
CVE-2025-43865
CVE-2025-43865
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
react-routernpm | >= 7.0.0-pre.0, < 7.5.2 | 7.5.2 |
Affected products
2Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-cpj6-fhp6-mr6jghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2025-43865ghsaADVISORY
- github.com/remix-run/react-router/blob/e6c53a0130559b4a9bd47f9cf76ea5b08a69868a/packages/react-router/lib/server-runtime/routes.tsnvdWEB
- github.com/remix-run/react-router/commit/c84302972a152d851cf5dd859ff332b354b70111nvdWEB
- github.com/remix-run/react-router/security/advisories/GHSA-cpj6-fhp6-mr6jnvdWEB
News mentions
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