VULNERABILITY INTELLIGENCE

CVE-2026-40181

CVSS score6.1 MEDIUM
EPSS probability0.22%
CISA KEVNot currently listed
Published2026-06-02
Last modified2026-08-04
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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.

Weakness classification

  • security-advisories@github.com: CWE-601

Primary references