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CVE-2026-40181

React Router

Description

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 6.1EPSS 0.16199999999999998%Risk 0.62
View source
Published
2026-06-02 20:16:35
Affected versions
>=7.0.0,<7.14.1, >=6.7.0,<6.30.4
Type
Package
Last modified
2026-08-04 22:17:14
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N