CVE-2025-55008 - CVE House
Back to Database
Status published High CVE-2025-55008

AuthKit React Router: Sensitive auth data rendered in HTML

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2025-55008

Credits & Attribution

No credits recorded in the NVD database.

References

More from workos

View All →
CVE-2025-64762
authkit-nextjs may let session cookies be cached in CDNs
High 8
CVE-2025-55009
AuthKit: Sensitive auth data rendered in HTML
High 7.1
CVE-2024-51753
Refresh tokens are logged when the debug flag is enabled in @workos-inc/authkit-remix
Low 2.1
CVE-2024-51752
Refresh tokens are logged when the debug flag is enabled in @workos-inc/authkit-nextjs
Low 2.1
CVE-2024-29901
@workos-inc/authkit-nextjs session replay vulnerability
Medium 4.8

Affected Vendor

Affected Software

authkit-react-router
Vulnerable Versions:
< 0.7.0

Timeline

Official Publish: August 9th, 2025
Last Modified: August 11th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L

Weaknesses (CWE)

CWE-200

MITRE ATT&CK TTPs

T1213 Data from Information Repositories
Collection
T1005 Data from Local System
Collection
T1552 Unsecured Credentials
Credential Access
T1041 Exfiltration Over C2 Channel
Exfiltration