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GHSA-vqvc-9q8x-vmq6

The AuthKit React Router Library rendered sensitive auth data in HTML

Source: GitHub Advisory Database (reviewed) High CVE-2025-55008

Packages

EcosystemPackageAffectedFixed in
npm @workos-inc/authkit-react-router < 0.7.0 0.7.0

Details

As written in the advisory (Markdown source, shown as plain text).

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. ### Impact This information disclosure could lead to session hijacking in environments where cross-site scripting (XSS), malicious browser extensions, or local inspection is possible. ### Patches Patched in [https://github.com/workos/authkit-react-router/releases/tag/v0.7.0](https://github.com/workos/authkit-react-router/releases/tag/v0.7.0) In patched versions: - `sealedSession` and `accessToken` are no longer returned by default from the `authkitLoader`. - A secure server-side mechanism is provided to fetch an access token as needed.

References

External links from the advisory. They lead to third-party sites.