GHSA-3cgp-3xvw-98x8
React Router has XSS Vulnerability
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | react-router | >= 7.0.0, < 7.9.0 | 7.9.0 |
| npm | @remix-run/react | >= 1.15.0, < 2.17.1 | 2.17.1 |
Details
As written in the advisory (Markdown source, shown as plain text).
A XSS vulnerability exists in in React Router's `meta()`/`<Meta>` APIs in [Framework Mode](https://reactrouter.com/start/modes#framework) when generating `script:ld+json` tags which could allow arbitrary JavaScript execution during SSR if untrusted content is used to generate the tag.
> [!NOTE]
> This does not impact applications using [Declarative Mode](https://reactrouter.com/start/modes#declarative) (`<BrowserRouter>`) or [Data Mode](https://reactrouter.com/start/modes#data) (`createBrowserRouter`/`<RouterProvider>`).
References
External links from the advisory. They lead to third-party sites.
- https://github.com/remix-run/react-router/security/advisories/GHSA-3cgp-3xvw-98x8
- https://nvd.nist.gov/vuln/detail/CVE-2025-59057
- https://github.com/remix-run/react-router/pull/14316
- https://github.com/remix-run/react-router/commit/0e774855797fcb3c7538c269158f4541beb55a1b
- https://access.redhat.com/errata/RHSA-2026:19712
- https://access.redhat.com/errata/RHSA-2026:3782
- https://access.redhat.com/errata/RHSA-2026:3958
- https://access.redhat.com/errata/RHSA-2026:3960
- https://access.redhat.com/security/cve/CVE-2025-59057
- https://bugzilla.redhat.com/show_bug.cgi?id=2428426
- https://github.com/remix-run/react-router
- https://github.com/remix-run/react-router/blob/main/CHANGELOG.md#v790
- https://github.com/remix-run/react-router/releases/tag/[email protected]
- https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-59057.json