Description
Clerk JavaScript is the official JavaScript repository for Clerk authentication. has(), auth.protect(), and related authorization predicates in @clerk/shared, @clerk/nextjs, @clerk/backend, and other framework SDKs can return true for certain combined authorization checks when the result should be false, allowing a gated action to proceed for a user who does not satisfy the full set of requested conditions. This call shape can be bypassed if certain conditions are met: a has() or auth.protect() call that combines a reverification check with any of role, permission, feature, or plan, or that combines a billing check (feature or plan) with a role or permission check. This vulnerability is fixed in @clerk/clerk-js 5.125.10 and 6.7.5.
Published: 2026-05-11
Score: 7.6 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-w24r-5266-9c3c Clerk has an authorization bypass when combining organization, billing, or reverification checks
History

Thu, 14 May 2026 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 12 May 2026 10:45:00 +0000

Type Values Removed Values Added
First Time appeared Clerk
Clerk astro
Clerk backend
Clerk chrome-extension
Clerk clerk-expo
Clerk clerk-react
Clerk expo
Clerk express
Clerk fastify
Clerk hono
Clerk javascript
Clerk nextjs
Clerk nuxt
Clerk react
Clerk react-router
Clerk shared
Clerk tanstack-react-start
Clerk vue
Vendors & Products Clerk
Clerk astro
Clerk backend
Clerk chrome-extension
Clerk clerk-expo
Clerk clerk-react
Clerk expo
Clerk express
Clerk fastify
Clerk hono
Clerk javascript
Clerk nextjs
Clerk nuxt
Clerk react
Clerk react-router
Clerk shared
Clerk tanstack-react-start
Clerk vue

Mon, 11 May 2026 16:30:00 +0000

Type Values Removed Values Added
Description Clerk JavaScript is the official JavaScript repository for Clerk authentication. has(), auth.protect(), and related authorization predicates in @clerk/shared, @clerk/nextjs, @clerk/backend, and other framework SDKs can return true for certain combined authorization checks when the result should be false, allowing a gated action to proceed for a user who does not satisfy the full set of requested conditions. This call shape can be bypassed if certain conditions are met: a has() or auth.protect() call that combines a reverification check with any of role, permission, feature, or plan, or that combines a billing check (feature or plan) with a role or permission check. This vulnerability is fixed in @clerk/clerk-js 5.125.10 and 6.7.5.
Title Clerk: Authorization bypass when combining organization, billing, or reverification checks
Weaknesses CWE-754
CWE-863
References
Metrics cvssV4_0

{'score': 7.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}


Subscriptions

Clerk Astro Backend Chrome-extension Clerk-expo Clerk-react Expo Express Fastify Hono Javascript Nextjs Nuxt React React-router Shared Tanstack-react-start Vue
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-05-14T18:19:38.735Z

Reserved: 2026-04-26T13:26:14.515Z

Link: CVE-2026-42349

cve-icon Vulnrichment

Updated: 2026-05-14T18:19:17.030Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-05-11T17:16:33.147

Modified: 2026-05-14T19:16:35.777

Link: CVE-2026-42349

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-12T09:22:55Z

Weaknesses