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 depends on the validation done by the application prior to returning the redirect. This does not impact applications using Declarative Mode (<BrowserRouter>). This is patched in versions 7.14.1 and 6.30.4.

CVSS v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

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-2j2x-hqr9-3h42	Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

04 Jun 2026, 18:46

Type	Values Removed	Values Added
CPE		cpe:2.3:a:shopify:react-router::::::node.js::*
First Time		Shopify Shopify react-router
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 6.1
References	~~() https://github.com/remix-run/react-router/security/advisories/GHSA-2j2x-hqr9-3h42 -~~	() https://github.com/remix-run/react-router/security/advisories/GHSA-2j2x-hqr9-3h42 - Vendor Advisory

02 Jun 2026, 20:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-02 20:16

Updated : 2026-06-04 18:46

NVD link : CVE-2026-40181

Mitre link : CVE-2026-40181

CVE.ORG link : CVE-2026-40181

JSON object : View

Products Affected

shopify

react-router

CWE

CWE-601

URL Redirection to Untrusted Site ('Open Redirect')

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