PT-2026-46083 · Npm · React Router

Published 2026-06-03 · Updated 2026-06-03

OSV

CVSS v4.0

6.6

Medium

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U

Certain URLs passed to the redirect function can trigger an open redirect to an external domain depending on the level of validation done by the application prior to returning the redirect.

[!NOTE] This does not impact your React Router application if you are using Declarative Mode (<BrowserRouter>)

Fix

Open Redirect

Weakness Enumeration

CWE-601

Related Identifiers

GHSA-2J2X-HQR9-3H42

Affected Products

React Router

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-40181 · Security Note
• https://osv.dev/vulnerability/GHSA-2j2x-hqr9-3h42 · Vendor Advisory
• https://github.com/remix-run/react-router · Note
• https://github.com/remix-run/react-router/security/advisories/GHSA-2j2x-hqr9-3h42 · Note