High, CVSS 7.1npmAmendedPublished
The AuthKit React Router Library rendered sensitive auth data in HTML
CVE-2025-55008 · GHSA-vqvc-9q8x-vmq6
- Affected
- npm @workos-inc/authkit-react-router < 0.7.0
- Fixed in
- 0.7.0· Vendor fix available
- Issue
- 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 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.
Recommended action: Upgrade to 0.7.0 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.