CVE-2026-53669Medium· 5.4▾ SunlitA 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 …
▾ Sunlit zone — Low / medium · no exploitation signal
impact 29.7 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Jul 31.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
0.5%
— → 5.4
Last analysed / modified upstream
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: React Router: Open Redirect vulnerability via backslashes in navigation components — rated Moderate by Red Hat. Released 2026-07-27, updated 2026-10-16.
Affected:
Fixed:
No fix planned:
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/ https://access.redhat.com/errata/RHSA-2026:48780 For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/ https://access.redhat.com/errata/RHSA-2026:48799
Workarounds / mitigations:
Affected packages:
react-router >= 6.0.0, < 7.18.0Patched in:
react-router 7.18.0Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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