Is react-router 7.17 vulnerable?
npm · 1 release from 7.17.0 to 7.17.0 · latest react-router is 8.5.1 · checked 1 Nov 2026
Yes: 5 known advisories
Yes. react-router 7.17.0, the last 7.17 release, is affected by 5 known security advisories (2 high, 3 medium), including CVE-2026-55685, CVE-2026-53669, CVE-2026-53667. Upgrade to 7.18.2 or later to fix all of them.
npm install react-router@7.18.2Advisories affecting react-router 7.17.0
React Router: RSC Mode CSRF Bypass Allows Action Execution Before 400 Response
- Affected
- >=7.12.0 <7.18.2 · >=8.0.0 <8.3.0
- Fixed in
- 7.18.2, 8.3.0
React Router: Unauthenticated Denial of Service via Inefficient Route Matching
- Affected
- >=7.0.0 <7.18.0
- Fixed in
- 7.18.0
React Router: Open redirect via backslash in <Link> and useNavigate (CVE-2025-68470 bypass)
- Affected
- >=6.0.0 <7.18.0
- Fixed in
- 7.18.0
React Router: RSCErrorHandler Missing Protocol Validation (XSS)
- Affected
- >=7.11.0 <7.18.0
- Fixed in
- 7.18.0
React Router: Arbitrary Constructor Injection via deserializeErrors() in React Router SSR Hydration
- Affected
- >=6.4.0 <7.18.0
- Fixed in
- 7.18.0
Which of your client projects are still on react-router 7.17?
NPMscan reads the lockfiles in every GitHub repo you pick, finds the exact react-router version each one installs, and checks it against these advisories. Each finding comes with the command that fixes it.
Other react-router versions
Advisory data from OSV.dev (opens OSV.dev in a new tab), which includes the GitHub Advisory Database. Release list from the npm registry. Refreshed daily.