CVE-2025-55009 json
AuthKit: Sensitive auth data rendered in HTML
published last yr. modified 4mo ago also GHSA-v3gr-w9gf-23cx , EUVD-2025-24030
- cvss
- 7.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 35%
- public exploits
- 0
- none known
Summary
The AuthKit library for Remix provides convenient helpers for authentication and session management using WorkOS & AuthKit with Remix. In versions 0.14.1 and below, @workos-inc/authkit-remix exposed sensitive authentication artifacts — specifically sealedSession and accessToken — by returning them from the authkitLoader. This caused them to be rendered into the browser HTML.
Patch / fix
- npm @workos-inc/authkit-remix 0.15.0
Is CVE-2025-55009 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- last yr.
Exploit prediction
0.41% chance of exploitation in the next 30 days, higher than 35% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.1 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L |
| GitHub | 3.1 | 7.1 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | @workos-inc/authkit-remix | <0.15.0 |
0.15.0 |
Affected products
- workos authkit-remix
Classification
- Weakness
-
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
References
-
github.com
/workos/authkit-remix/commit/20102afc74bf3dd5150a975a098067fb406b90b6
web
-
github.com
/workos/authkit-remix/security/advisories/GHSA-v3gr-w9gf-23cx
web
-
github.com
/workos/authkit-remix/releases/tag/v0.15.0
web
-
nvd.nist.gov
/vuln/detail/CVE-2025-55009
advisory
-
github.com
/workos/authkit-remix
package
-
osv.dev
/vulnerability/CVE-2025-55009
web
-
osv.dev
/vulnerability/GHSA-v3gr-w9gf-23cx
web
Sources
- CVE List CVE-2025-55009
- GitHub Advisory GHSA-v3gr-w9gf-23cx
- NVD CVE-2025-55009
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