Description
In versions before 0.7.0, @workos-inc/authkit-react-router exposed sensitive authentication artifacts — specifically sealedSession and accessToken by returning them from the authkitLoader. This caused them to be rendered into the browser HTML.
Recommendation
Update the @workos-inc/authkit-react-router package to the latest compatible version. Followings are version details:
- Affected version(s): < 0.7.0
- Patched version(s): 0.7.0
References
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- @clerk/backend Performs Insufficient Verification of Data Authenticity - @clerk/react-router - CVE-2025-53548
- React Router has Path Traversal in File Session Storage - CVE-2025-61686
- React Router has XSS Vulnerability - CVE-2025-59057
- Remix and React Router allow URL manipulation via Host / X-Forwarded-Host headers - CVE-2025-31137


