CVE-2026-53669
react-router: React Router: Open Redirect vulnerability via backslashes in navigation components
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · July 28, 2026
Updated · November 1, 2026
Description
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.
Statement
This Moderate impact open redirect vulnerability in React Router affects multiple Red Hat products. A remote attacker could exploit this by crafting a malicious link that uses backslashes in navigation components, leading to user redirection to arbitrary external websites. This could facilitate phishing attacks against users.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
CVSS / CWE
CVSS 3.1 · 5.4CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
CWE-601 · URL Redirection to Untrusted Site