CVE-2026-53663
LowCVSS 3.1Exploitation Probability (EPSS)
Low risk1th percentile — higher than 1% of all known CVEs
Summary
React Router versions from 7.12.0 to 7.15.1 had insufficient CSRF checks in Framework Mode that operated on POST requests but were bypassed on PUT/PATCH/DELETE requests. This vulnerability is fixed in version 7.15.1.
Risk Assessment
The vulnerability is of low severity because modern browser protections (CORS preflight, SameSite cookies) already block the cross-origin attack vectors that this missing CSRF check would otherwise expose.
Recommendation
It is recommended to update React Router to version 7.15.1 or later to mitigate this vulnerability.
Original NVD description (English source)
React Router is a router for React. From 7.12.0 until 7.15.1, certain CSRF checks in React Router v7 Framework Mode were insufficient and run on POST requests, but were bypassed on PUT/PATCH/DELETE requests. This is a low severity vulnerability because modern browser protections (CORS preflight, SameSite cookies) already block the cross-origin attack vectors that this missing CSRF check would otherwise gate. This vulnerability is fixed in 7.15.1.