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.
History

Mon, 01 Jun 2026 16:45:00 +0000

Type Values Removed Values Added
First Time appeared Clerk clerk\/astro
Clerk clerk\/backend
Clerk clerk\/chrome-extension
Clerk clerk\/clerk-expo
Clerk clerk\/clerk-js
Clerk clerk\/clerk-react
Clerk clerk\/expo
Clerk clerk\/express
Clerk clerk\/fastify
Clerk clerk\/hono
Clerk clerk\/nextjs
Clerk clerk\/nuxt
Clerk clerk\/react
Clerk clerk\/react-router
Clerk clerk\/shared
Clerk clerk\/tanstack-react-start
Clerk clerk\/vue
CPEs cpe:2.3:a:clerk:clerk\/astro:*:*:*:*:*:node.js:*:*
cpe:2.3:a:clerk:clerk\/backend:*:*:*:*:*:node.js:*:*
cpe:2.3:a:clerk:clerk\/chrome-extension:*:*:*:*:*:node.js:*:*
cpe:2.3:a:clerk:clerk\/clerk-expo:*:*:*:*:*:node.js:*:*
cpe:2.3:a:clerk:clerk\/clerk-js:*:*:*:*:*:node.js:*:*
cpe:2.3:a:clerk:clerk\/clerk-react:*:*:*:*:*:node.js:*:*
cpe:2.3:a:clerk:clerk\/expo:*:*:*:*:*:node.js:*:*
cpe:2.3:a:clerk:clerk\/express:*:*:*:*:*:node.js:*:*
cpe:2.3:a:clerk:clerk\/fastify:*:*:*:*:*:node.js:*:*
cpe:2.3:a:clerk:clerk\/hono:*:*:*:*:*:node.js:*:*
cpe:2.3:a:clerk:clerk\/nextjs:*:*:*:*:*:node.js:*:*
cpe:2.3:a:clerk:clerk\/nuxt:*:*:*:*:*:node.js:*:*
cpe:2.3:a:clerk:clerk\/react-router:*:*:*:*:*:node.js:*:*
cpe:2.3:a:clerk:clerk\/react:*:*:*:*:*:node.js:*:*
cpe:2.3:a:clerk:clerk\/shared:*:*:*:*:*:node.js:*:*
cpe:2.3:a:clerk:clerk\/tanstack-react-start:*:*:*:*:*:node.js:*:*
cpe:2.3:a:clerk:clerk\/vue:*:*:*:*:*:node.js:*:*
Vendors & Products Clerk clerk\/astro
Clerk clerk\/backend
Clerk clerk\/chrome-extension
Clerk clerk\/clerk-expo
Clerk clerk\/clerk-js
Clerk clerk\/clerk-react
Clerk clerk\/expo
Clerk clerk\/express
Clerk clerk\/fastify
Clerk clerk\/hono
Clerk clerk\/nextjs
Clerk clerk\/nuxt
Clerk clerk\/react
Clerk clerk\/react-router
Clerk clerk\/shared
Clerk clerk\/tanstack-react-start
Clerk clerk\/vue
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'}


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'}


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 : Analyzed

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

Modified: 2026-06-01T16:33:43.980

Link: CVE-2026-42349

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

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