CVE-2026-53663

A flaw was found in React Router. Insufficient Cross-Site Request Forgery CSRF checks in the framework mode allow a remote attacker to bypass these protections on PUT, PATCH, and DELETE requests. This could lead to a low integrity impact, where an attacker might be able to perform unintended...

GHSA-RXV8-25V2-QMQ8 React Router vulnerable to Denial of Service via reflected user input in single-fetch

A DoS vulnerability exists in the React Router v7 Framework Mode, as well as Remix v2.9.0+ with Single Fetch enabled. In some scenarios the underlying serialization algorithm can become a bottleneck when encoding specific types of data into server responses. Please upgrade to React Router v7.14.0...

GHSA-8X6R-G9MW-2R78 React Router vulnerable to DoS via unbounded path expansion in __manifest endpoint

There exists a potential DOS attack vector in React Router Framework Mode applications as well as Remix v2.10.0 - 2.17.4. Certain requests can be crafted to consume disproportionate resources on the server, resulting in response time degredation and/or service unavailability for end users. !NOTE...

React Router vulnerable to DoS via unbounded path expansion in __manifest endpoint

There exists a potential DOS attack vector in React Router Framework Mode applications as well as Remix v2.10.0 - 2.17.4. Certain requests can be crafted to consume disproportionate resources on the server, resulting in response time degredation and/or service unavailability for end users. !NOTE...

React Router's vendored turbo-stream v2 allows arbitrary constructor invocation via TYPE_ERROR deserialization leading to Unauth RCE

When using React Router v7 in Framework Mode, there exists a combination of steps that could potentially allow unauthorized RCE through external requests. This first requires the application code to have an existing prototype pollution vulnerability. This can be leveraged into a 2-step attack in...

PT-2026-46089

There exists a potential DOS attack vector in React Router Framework Mode applications as well as Remix v2.10.0 - 2.17.4. Certain requests can be crafted to consume disproportionate resources on the server, resulting in response time degredation and/or service unavailability for end users. !NOTE...