A flaw was found in React Router, a routing library for React applications. A remote attacker could exploit this vulnerability by crafting a malicious link that uses backslashes within the <Link> or useNavigate components. This could lead to an Open Redirect, allowing the attacker to redirect users to arbitrary external websites, potentially for phishing or other malicious purposes.

React Router is a router for React. Versions 6.0.0 through 7.17.0 are vulnerable to Open Redirtect through use of backslashes in <Link> and useNavigate. This issue is a follow up to CVE-2025-68470 and has been fixed in version 7.18.0.

React Router: Open redirect via backslash in <Link> and useNavigate (CVE-2025-68470 bypass)