CVE-2026-53666
1 advisory.
npm/react-router CVE-2026-53666: medium 6.1, EPSS 0.42%
React Router: Arbitrary Constructor Injection via deserializeErrors() in React Router SSR Hydration
Action: Upgrade react-router to 7.18.0 or later.
npm i react-router@7.18.0Affected
| introduced | fixed | last affected |
|---|---|---|
| 6.4.0 | 7.18.0 | - |
Fixed versions
| 7.18.0 |
Sources
- osv: GHSA-337j-9hxr-rhxg
- https://github.com/remix-run/react-router/security/advisories/GHSA-337j-9hxr-rhxg
- https://github.com/remix-run/react-router/pull/15175
- https://github.com/remix-run/react-router/commit/9d22943fd46c8ae4b08236425fa3549e10e9ad1a
- https://github.com/remix-run/react-router
- https://github.com/remix-run/react-router/blob/main/CHANGELOG.md#v7180
- https://github.com/remix-run/react-router/releases/tag/react-router@7.18.0
CVE-2026-53666 · published · modified · JSON