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 untrusted source. This does not impact applications using Declarative Mode (`<BrowserRouter>`) or Data Mode (`createBrowserRouter/<RouterProvider>`). This is patched in version 7.13.2.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.3 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/remix-run/react-router/security/advisories/GHSA-f22v-gfqf-p8f3	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:shopify:react-router:*:*:*:*:*:node.js:*:*

History

21 Jul 2026, 19:10

Type	Values Removed	Values Added
Summary		(es) React Router es un router para React. En las versiones 7.5.1 a 7.13.1, cuando se utiliza el Modo Framework con el pre-renderizado habilitado, la neutralización inadecuada del valor del encabezado HTTP 'Location' puede permitir Cross-Site Scripting (XSS) en los archivos HTML generados estáticamente si la ubicación de redirección proviene de una fuente no confiable. Esto no impacta a las aplicaciones que utilizan el Modo Declarativo ('<BrowserRouter>') o el Modo de Datos ('createBrowserRouter/<RouterProvider>'). Esto está parcheado en la versión 7.13.2.

03 Jun 2026, 16:54

Type	Values Removed	Values Added
First Time		Shopify react-router Shopify
References	~~() https://github.com/remix-run/react-router/security/advisories/GHSA-f22v-gfqf-p8f3 -~~	() https://github.com/remix-run/react-router/security/advisories/GHSA-f22v-gfqf-p8f3 - Vendor Advisory
CPE		cpe:2.3:a:shopify:react-router::::::node.js::*

02 Jun 2026, 17:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-02 17:16

Updated : 2026-07-21 19:10

NVD link : CVE-2026-33244

Mitre link : CVE-2026-33244

CVE.ORG link : CVE-2026-33244

JSON object : View

Products Affected

shopify

react-router

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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