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

> CVE-2025-55008: AuthKit React Router: Sensitive auth data rendered in HTML. CVSS 7.1 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2025-55008
Last updated: 2026-06-17T09:41:06Z

- Published: 2025-08-09 02:02 UTC · Updated: 2026-06-17 09:41 UTC · Assigner: GitHub\_M
- CVSS: 7.1 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L
- EPSS: 0.39%, 33th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-200

## 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.

## Affected vendors and products

- workos: authkit-react-router

## Tracked companies

- [WorkOS](https://rewindex.com/company/workos.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2025-55008)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2025-55008)
- [https://github.com/workos/authkit-react-router/commit/607caac658784962bab76e227f9c5820d0b9a9e5](https://github.com/workos/authkit-react-router/commit/607caac658784962bab76e227f9c5820d0b9a9e5)
- [https://github.com/workos/authkit-react-router/releases/tag/v0.7.0](https://github.com/workos/authkit-react-router/releases/tag/v0.7.0)
- [https://github.com/workos/authkit-react-router/security/advisories/GHSA-vqvc-9q8x-vmq6](https://github.com/workos/authkit-react-router/security/advisories/GHSA-vqvc-9q8x-vmq6)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2025-55008 · Markdown: https://rewindex.com/cve/CVE-2025-55008.md · JSON: https://rewindex.com/api/v1/cves/CVE-2025-55008 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T04:04:34.095Z