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js · react-routerHeads-up

react-router v7 Framework Mode Insufficient CSRF Checks on PUT/PATCH/DELETE

CSRF checks in React Router v7 Framework Mode were insufficient on PUT/PATCH/DELETE requests, allowing bypass.

16 Jun 2026Read 1 minSeverity: schedule it

What changed

CSRF checks in React Router v7 Framework Mode were insufficient on PUT/PATCH/DELETE requests, allowing bypass.

Who it affects

Applications using React Router v7 in Framework Mode.

What to do today

Review your React Router v7 Framework Mode usage and apply the security patch if available.

The trail
Collected Audited Written Published