Security vulnerabilities and automated fixes for react router issues
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CVE-2026-55685 is a high-severity Denial of Service vulnerability in React Router's `@remix-run/server-runtime` that allows unauthenticated attackers to exhaust server resources by sending crafted requests to the manifest endpoint. The fix upgrades `react-router` from version 7.17.0 to 7.18.0, which tightens handling of untrusted input in route matching logic. Developers using any React Router 7.x application with server-side rendering should apply this patch immediately.