Input validation error in React Router - CVE-2025-68470
Published: June 19, 2026
Vulnerability identifier: #VU134929
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-68470
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Remix
Affected software:
React Router
React Router
Detailed vulnerability description
The vulnerability allows a remote user to redirect the application to an external URL.
The vulnerability exists due to improper input validation in navigation path handling when processing attacker-supplied paths passed to navigate(), Link, or redirect(). A remote user can supply a crafted path to redirect the application to an external URL.
This issue only occurs when untrusted content is passed into navigation paths in application code.
How to mitigate CVE-2025-68470
Install security update from vendor's website.