Remix-run vulnerabilities
We track 10 vulnerabilities in Remix-run products across 3 products. 10 are rated high or critical, and none are known to be exploited. The most recent was published on July 27, 2026.
Latest Remix-run vulnerabilities
- 7.5 High severity
react-router: Uncontrolled Resource Consumption
React Router is a router for React. In versions 7.0.0 through 7.17.0, the manifest endpoint could be accessed via unauthenticated targeted requests that would put heavy load on the server and slow down response times. This issue is a follow up to CVE-2026-4234
- 7.5 High severity
react-router: Uncontrolled Resource Consumption
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 __m
- 8.1 High severity
react-router: Deserialization of Untrusted Data
React Router is a router for React. In versions 7.0.0 through 7.14.1, when using Framework Mode, a combination of steps could potentially allow unauthorized remote code execution (RCE) through external requests. This attack requires the application code to hav
- 7.5 High severity
react-router: Allocation of Resources Without Limits or Throttling
React Router is a router for React. In versions 7.7.0 through 7.13.1, when using React Router's unstable React Server Components (RSC) APIs, there is a potential client-side Cross-Site Scripting (XSS) vulnerability in the RSC redirect handling if redirects com
- 8.2 High severity
react-router: Improper Neutralization of Input During Web Page Generation
React Router is a router for React. In @remix-run/react version prior to 2.17.3. and react-router 7.0.0 through 7.11.0, a XSS vulnerability exists in in React Router's <ScrollRestoration> API in Framework Mode when using the getKey/storageKey props during Serv
- 9.1 Critical severity
react-router: Improper Limitation of a Pathname to a Restricted Directory
React Router is a router for React. In @react-router/node versions 7.0.0 through 7.9.3, @remix-run/deno prior to version 2.17.2, and @remix-run/node prior to version 2.17.2, if createFileSessionStorage() is being used from @react-router/node (or @remix-run/nod
- 7.6 High severity
react-router: Improper Neutralization of Input During Web Page Generation
React Router is a router for React. In @remix-run/react versions 1.15.0 through 2.17.0. and react-router versions 7.0.0 through 7.8.2, a XSS vulnerability exists in in React Router's meta()/<Meta> APIs in Framework Mode when generating script:ld+json tags whic
- 8.2 High severity
react-router: Insufficient Verification of Data Authenticity
React Router is a router for React. In versions on the 7.0 branch prior to version 7.5.2, it's possible to modify pre-rendered data by adding a header to the request. This allows to completely spoof its contents and modify all the values of the data object p
- 7.5 High severity
react-router: Improper Handling of Exceptional Conditions
React Router is a router for React. Starting in version 7.2.0 and prior to version 7.5.2, it is possible to force an application to switch to SPA mode by adding a header to the request. If the application uses SSR and is forced to switch to SPA, this causes an
- 7.5 High severity
react-router: Inconsistent Interpretation of HTTP Requests
React Router is a multi-strategy router for React bridging the gap from React 18 to React 19. There is a vulnerability in Remix/React Router that affects all Remix 2 and React Router 7 consumers using the Express adapter. Basically, this vulnerability allows a