Summary
React Router: Open redirect via backslash in <Link> and useNavigate (CVE-2025-68470 bypass)
This is a follow up to CVE-2025-68470. React Router was alerted to certain scenarios in which the fix there was incomplete so there still existed some scenarios where attacker supplied paths passed to navigation mechanisms could result in unexpected external navigations.
Impact
Untrusted input controls a URL used for redirection, which can forward users to attacker-controlled sites. Typical impact: phishing and credential harvesting via a trusted domain.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
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Frequently Asked Questions
- What is CVE-2026-53669? CVE-2026-53669 is a medium-severity open redirect vulnerability in react-router (npm), affecting versions >= 6.0.0, < 7.18.0. It is fixed in 7.18.0. Untrusted input controls a URL used for redirection, which can forward users to attacker-controlled sites.
- Which versions of react-router are affected by CVE-2026-53669? react-router (npm) versions >= 6.0.0, < 7.18.0 is affected.
- Is there a fix for CVE-2026-53669? Yes. CVE-2026-53669 is fixed in 7.18.0. Upgrade to this version or later.
- Is CVE-2026-53669 exploitable, and should I be worried? Whether CVE-2026-53669 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether CVE-2026-53669 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix CVE-2026-53669? Upgrade
react-routerto 7.18.0 or later.