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...

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'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...

GHSA-2J2X-HQR9-3H42 React Router's same-origin redirect with path starting // causes open redirect via protocol-relative URL reinterpretation

Certain URLs passed to the redirect function can trigger an open redirect to an external domain depending on the level of validation done by the application prior to returning the redirect. !NOTE This does not impact your React Router application if you are using Declarative Mode...

EUVD-2026-33996

React Router's same-origin redirect with path starting // causes open redirect via protocol-relative URL reinterpretation...

SUSE CVE-2026-33244

React Router is a router for React. In versions 7.5.1 through 7.13.1, when using Framework Mode with pre-rendering enabled, improper neutralization of the HTTP Location header value can permit Cross-Site Scripting XSS in the statically generated HTML files if the redirect location comes from an...

PT-2026-46083

Certain URLs passed to the redirect function can trigger an open redirect to an external domain depending on the level of validation done by the application prior to returning the redirect. !NOTE This does not impact your React Router application if you are using Declarative Mode...

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...

PT-2026-46085

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...

CVE-2026-40181

React Router is a router for React. In versions 7.0.0 through 7.14.0 and 6.7.0 through 6.30.3, certain URLs passed to the redirect function can trigger an open redirect to an external domain due to path values starting with // being reinterpreted as protocol-relative URLs. The level of impact...

CVE-2026-40181 React Router's same-origin redirect with path starting // causes open redirect via protocol-relative URL reinterpretation

React Router is a router for React. In versions 7.0.0 through 7.14.0 and 6.7.0 through 6.30.3, certain URLs passed to the redirect function can trigger an open redirect to an external domain due to path values starting with // being reinterpreted as protocol-relative URLs. The level of impact...

CVE-2026-40181 React Router's same-origin redirect with path starting // causes open redirect via protocol-relative URL reinterpretation

React Router is a router for React. In versions 7.0.0 through 7.14.0 and 6.7.0 through 6.30.3, certain URLs passed to the redirect function can trigger an open redirect to an external domain due to path values starting with // being reinterpreted as protocol-relative URLs. The level of impact...

CVE-2026-40181

React Router is a router for React. In versions 7.0.0 through 7.14.0 and 6.7.0 through 6.30.3, certain URLs passed to the redirect function can trigger an open redirect to an external domain due to path values starting with // being reinterpreted as protocol-relative URLs. The level of impact...

PT-2026-45832

Name of the Vulnerable Software and Affected Versions React Router versions 6.7.0 through 6.30.3 React Router versions 7.0.0 through 7.14.0 Description Certain URLs passed to the redirect function can trigger an open redirect to an external domain. This occurs because path values starting with //...

Cross-site Request Forgery (CSRF)

Overview Affected versions of this package are vulnerable to Cross-site Request Forgery CSRF due to the improper origin checks of UI route submissions in server-side route action handlers in Framework Mode. An attacker can execute unauthorized actions by tricking a user into submitting a crafted...

GHSA-H5CW-625J-3RXH React Router has CSRF issue in Action/Server Action Request Processing

React Router or Remix v2 is vulnerable to CSRF attacks on document POST requests to UI routes when using server-side route action handlers in Framework Mode, or when using React Server Actions in the new unstable RSC modes. !NOTE This does not impact applications that use Declarative Mode or Data...

Cross-site Scripting (XSS)

Overview Affected versions of this package are vulnerable to Cross-site Scripting XSS in the navigation redirect process for loaders or actions in Framework Mode, Data Mode, or the unstable RSC modes. An attacker can execute arbitrary JavaScript code in the context of the user's browser by...

Cross-site Scripting (XSS)

Overview Affected versions of this package are vulnerable to Cross-site Scripting XSS in the navigation redirect process for loaders or actions in Framework Mode, Data Mode, or the unstable RSC modes. An attacker can execute arbitrary JavaScript code in the context of the user's browser by...

GHSA-2W69-QVJG-HVJX React Router vulnerable to XSS via Open Redirects

React Router and Remix v1/v2 SPA open navigation redirects originating from loaders or actions in Framework Mode, Data Mode, or the unstable RSC modes can result in unsafe URLs causing unintended javascript execution on the client. This is only an issue if developers are creating redirect paths...

Cross-site Scripting (XSS)

Overview Affected versions of this package are vulnerable to Cross-site Scripting XSS via the Meta API in Framework Mode when generating script:ld+json tags during server-side rendering with untrusted content. An attacker can execute arbitrary JavaScript code by injecting malicious input into the...