CVE-2026-42211

CVE-2026-42211 affects React Router versions 7.0.0–7.14.1 when used in Framework Mode. A combination of steps could enable a prototype pollution condition that an attacker could leverage in a two-step process to trigger unauthorized remote code execution on the remote server. The issue does not i...

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-2026-42342

CVE-2026-42342 affects React Router and Remix Server Runtime: versions 7.0.0–7.14.x of react-router and 2.10.0–2.17.4 of @remix-run/server-runtime are vulnerable to DoS via unbounded path expansion on the __manifest endpoint, causing high resource usage and potential unavailability for Framework ...

CVE-2026-40181

Summary: CVE-2026-40181 affects React Router. In versions 7.0.0–7.14.0 and 6.7.0–6.30.3, redirect() can produce an open redirect to an external domain when the URL starts with //, due to protocol-relative URL handling. Impact depends on application-side redirect validation and does not affect Dec...

CVE-2026-34077

React Router upstream vulnerability CVE-2026-34077 affects versions 7.7.0–7.13.1 where, when using unstable React Server Components APIs, the RSC redirect handling can lead to a client-side XSS if redirects come from untrusted sources. The issue does not impact non-RSC applications. A fix is avai...

CVE-2026-33245

CVE-2026-33245 affects React Router versions 7.7.0–7.13.1 when using unstable React Server Components (RSC) APIs. The issue is a client-side XSS vulnerability in the RSC redirect handling if redirects originate from untrusted sources. Applications not using the unstable RSC APIs are not affected....

CVE-2025-68470

CVE-2025-68470 affects React Router (versions 6.0.0–6.30.1 and 7.0.0–7.9.5). An attacker-supplied path can cause a navigation/redirect to an external URL when navigating via navigate(), Link, or redirect(), if untrusted content is used in navigation paths. The issue is addressed in React Router b...

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-2025-59057

CVE-2025-59057 concerns an XSS vulnerability in React Router’s meta()/ APIs when used in Framework Mode. Affected software includes React Router 7.0.0–7.8.2 and @remix-run/react 1.15.0–2.17.0; the issue can enable arbitrary JavaScript execution during SSR if untrusted content is used to generate ...

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...

CVE-2026-33244

CVE-2026-33244 affects React Router in versions 7.5.1–7.13.1 when using Framework Mode with pre-rendering enabled. The issue is improper neutralization of the HTTP Location header value, allowing Cross-Site Scripting (XSS) in statically generated HTML if the redirect target comes from an untruste...