CVE-2025-55008 HIGH

CVE-2025-55008: AuthKit React Router: Sensitive auth data rendered in HTML

Vendor Workos
Product authkit-react-router
Weakness CWE-200 · Info exposure
Published August 9, 2025
Last update August 11, 2025
View on NVD All CVEs

CVSS base score

7.1/10
Attack vector Network
Attack complexity High
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L

What the vulnerability does

01Description

The AuthKit library for React Router 7+ provides helpers for authentication and session management using WorkOS & AuthKit with React Router. In versions 0.6.1 and below, @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. This issue is fixed in version 0.7.0.

Key dates

02Disclosure timeline

August 9, 2025 CVE published
August 11, 2025 Record updated