cvedb.io
CVE-2026-42342
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2026-06-02T20:16:36.693 · Last modified 2026-06-17T10:47:42.793

Summary

React Router is a router for React. In versions 7.0.0 through 7.14.x of react-router and versions 2.10.0 through 2.17.4 of @remix-run/server-runtime, certain crafted requests can consume disproportionate server resources via unbounded path expansion in the __manifest endpoint, resulting in response time degradation and/or service unavailability for end users. This affects React Router Framework Mode applications as well as Remix applications. This does not impact applications using Declarative Mode (`<BrowserRouter>`) or Data Mode (`createBrowserRouter/<RouterProvider>`). This is patched in react-router version 7.15.0 and @remix-run/server-runtime version 2.17.5.

Affected products

shopify — react-router

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.