CVE-2026-22030: CSRF in React Router Applications

The primary impact of CVE-2026-22030 is the potential for attackers to exploit CSRF vulnerabilities to perform unauthorized actions within a React Router application. Specifically, an attacker could craft malicious requests that, when triggered by a user, would result in unintended document POST requests being sent to the server. This could lead to data modification, account compromise, or other sensitive operations depending on the application's functionality. The vulnerability is particularly concerning in applications that handle sensitive data or perform critical actions via POST requests, as it bypasses standard authentication mechanisms.

1. Reserved2026-01-05
2. Published2026-01-08
3. Modified2026-02-03
4. EPSS updated2026-03-23

The primary mitigation for CVE-2026-22030 is to upgrade to React Router version 7.12.0 or later. This version includes fixes to prevent the CSRF vulnerability. If upgrading is not immediately feasible, consider implementing additional CSRF protection measures, such as using CSRF tokens for all document POST requests. Ensure that your application's server-side route handlers properly validate and sanitize all incoming data to prevent malicious input from being processed. Review and update any existing CSRF protection mechanisms to ensure they are effective against this specific vulnerability.

Last updated

7.13.12 months ago