Vulnerabilities in pkg:npm/@workos-inc/authkit-remix

PACKAGE
Advisory Identifier: GHSA-v3gr-w9gf-23cx
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Advisory Summary

CVE-2025-55009 is a HIGH (CVSS 7.1) the authkit remix library renders vulnerability (CWE-200: Exposure of Sensitive Information to an Unauthorized Actor) affecting @workos inc/authkit remix libraries in the npm ecosystem. The issue involves the authkit remix library renders sensitive auth data in html. Remediation is available by upgrading affected packages to version 0.15.0.

2 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:npm/@workos-inc/authkit-remix

2 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:npm/@workos-inc/authkit-remix. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-v3gr-w9gf-23cx CVE-2025-55009 HIGH The AuthKit Remix Library renders sensitive auth data in HTML
GHSA-v2qh-f584-6hj8 CVE-2024-51753 LOW @workos-inc/authkit-remix refresh tokens are logged when the debug flag is enabled

CVE-2025-55009 at a Glance

CVE Identifier CVE-2025-55009
GHSA Identifier GHSA-v3gr-w9gf-23cx
Severity HIGH
CVSS v3.1 Base Score 7.1
CWE Classification CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Affected Product @workos inc/authkit remix
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 7.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L).

Attack Vector Network (AV:N)
Attack Complexity High (AC:H)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability Low (A:L)

How to Fix CVE-2025-55009

To remediate this vulnerability, upgrade all affected @workos inc/authkit remix dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

@workos-inc/authkit-remix fixed: 0.15.0 
npm install @workos-inc/authkit-remix@0.15.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls @workos-inc/authkit-remix

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2025-55009, inspect your project dependencies using npm:

npm ls @workos-inc/authkit-remix

Analyze the terminal output to locate any version of @workos inc/authkit remix in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.15.0), your application is affected.

Note: The npm ls @workos-inc/authkit-remix command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor, where the product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. In @workos inc/authkit remix, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Summary Before `0.15.0`, `@workos-inc/authkit-remix` returned sensitive authentication artifacts from the `authkitLoader`, specifically `sealedSession` and `accessToken`. Because these values were returned from the loader, they were embedded into the server-rendered HTML and became readable by any script with access to the page’s DOM (e.g., in the presence of XSS or a malicious browser extension). * **Impact:** Exposure of these secrets can lead to session hijacking and unauthorized API access. * **Fix:** Version `0.15.0` changes the default behavior so the loader no longer returns `sealedSession`/`accessToken`. A secure server-side mechanism is provided to fetch an access token when needed. ### Patches Patched in [v0.15.0](https://github.com/workos/authkit-remix/releases/tag/v0.15.0).

CVE-2025-55009 Affected @workos inc/authkit remix Versions

1 component(s)
Fixed Versions:
0.15.0
Product / Package Ecosystem Affected Versions Fixed Version
@workos-inc/authkit-remix
npm/@workos-inc/authkit-remix
npm
< 0.15.0
0.15.0

References

GitHub Advisory / Wiki ADVISORY
https://github.com/workos/authkit-remix/security/advisories/GHSA-v3gr-w9gf-23cx
NVD — CVE-2025-55009 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-55009
Security Fix Commit FIX COMMIT
https://github.com/workos/authkit-remix/commit/20102afc74bf3dd5150a975a098067fb406b90b6
@workos inc/authkit remix Source Repository REPOSITORY
https://github.com/workos/authkit-remix
@workos inc/authkit remix Release RELEASE
https://github.com/workos/authkit-remix/releases/tag/v0.15.0
osv.dev/vulnerability/cve-2... WEB
https://osv.dev/vulnerability/CVE-2025-55009
osv.dev/vulnerability/ghsa-... WEB
https://osv.dev/vulnerability/GHSA-v3gr-w9gf-23cx

Frequently Asked Questions

What is CVE-2025-55009?
CVE-2025-55009 is a security vulnerability in @workos inc/authkit remix involving The AuthKit Remix Library renders sensitive auth data in HTML under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor.
Which @workos inc/authkit remix versions are affected?
Affected versions include releases prior to 0.15.0 across affected packages: @workos-inc/authkit-remix.
What version fixes CVE-2025-55009?
Upgrading to 0.15.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is @workos-inc/authkit-remix affected?
Yes, @workos-inc/authkit-remix is affected in releases prior to 0.15.0. Upgrade your dependency to 0.15.0 or later.
What is the CVSS score of CVE-2025-55009?
CVE-2025-55009 has a CVSS v3.1 base score of 7.1 (HIGH) with vector string CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L.
What CWE is associated with CVE-2025-55009?
CVE-2025-55009 is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor (The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.).
How can I check npm dependencies for CVE-2025-55009?
Run the dependency tree command: 'npm ls @workos-inc/authkit-remix'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-v3gr-w9gf-23cx",
  "modified" : "2025-09-25T22:56:19Z",
  "published" : "2025-08-08T17:08:46Z",
  "aliases" : [ "CVE-2025-55009" ],
  "summary" : "The AuthKit Remix Library renders sensitive auth data in HTML",
  "details" : "### Summary\n\nBefore `0.15.0`, `@workos-inc/authkit-remix` returned sensitive authentication artifacts from the `authkitLoader`, specifically `sealedSession` and `accessToken`. Because these values were returned from the loader, they were embedded into the server-rendered HTML and became readable by any script with access to the page’s DOM (e.g., in the presence of XSS or a malicious browser extension).\n\n*   **Impact:** Exposure of these secrets can lead to session hijacking and unauthorized API access.\n*   **Fix:** Version `0.15.0` changes the default behavior so the loader no longer returns `sealedSession`/`accessToken`. A secure server-side mechanism is provided to fetch an access token when needed.\n\n### Patches\n\nPatched in [v0.15.0](https://github.com/workos/authkit-remix/releases/tag/v0.15.0).",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "@workos-inc/authkit-remix"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.15.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/workos/authkit-remix/security/advisories/GHSA-v3gr-w9gf-23cx"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-55009"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/workos/authkit-remix/commit/20102afc74bf3dd5150a975a098067fb406b90b6"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/workos/authkit-remix"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/workos/authkit-remix/releases/tag/v0.15.0"
  }, {
    "type" : "WEB",
    "url" : "https://osv.dev/vulnerability/CVE-2025-55009"
  }, {
    "type" : "WEB",
    "url" : "https://osv.dev/vulnerability/GHSA-v3gr-w9gf-23cx"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-08-08T17:08:46Z",
    "nvd_published_at" : "2025-08-09T03:15:47Z"
  }
}