CVE-2026-22029

CVE-2026-22029 stems from React Router/Remix Router open redirects in framework-mode redirects. Affected: @remix-run/router <1.23.2 and react-router <7.12.0 (7.0.0–7.11.0). Impact: unsafe URLs and potentially unintended JavaScript execution on the client when redirects originate from loader...

CVE-2026-21884

CVE-2026-21884 is a Cross-Site Scripting (XSS) vulnerability in React Router SSR usage. Affected: @remix-run/react prior to 2.17.3 and react-router 7.0.0–7.11.0. Root cause: during Server-Side Rendering in Framework Mode, using getKey/storageKey with can allow arbitrary JavaScript execution if u...

CVE-2026-53667

CVE-2026-53667 affects React Router (versions 7.11.0–7.17.0) where the RSCErrorHandler failed to validate protocol, enabling possible cross-site scripting via redirects from untrusted sources when using the unstable RSC APIs. The issue stems from missing protocol validation in the RSCErrorHandler...

CVE-2026-22030

CVE-2026-22030 affects React Router in combination with Remix v2 server runtime in Framework Mode or with React Server Actions (RSC). The vulnerability allows CSRF on document POST requests to UI routes when using server-side route actions, with no impact in Declarative Mode () or Data Mode (crea...