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.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements Present

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00054.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
clerk javascript affected
Version Status Constraints
>= 5.22.0, < 5.125.10 affected —
>= 6.0.0, < 6.7.5 affected —
@clerk shared affected
Version Status Constraints
>= 3.0.0, <= 3.47.4 affected —
>= 4.0.0, <= 4.8.2 affected —
@clerk backend affected
Version Status Constraints
>= 2.0.0, <= 2.33.2 affected —
>= 3.0.0, <= 3.2.13 affected —
@clerk nextjs affected
Version Status Constraints
>= 6.0.0, <= 6.39.2 affected —
>= 7.0.0, <= 7.2.3 affected —
@clerk clerk-react affected
Version Status Constraints
>= 5.9.0, <= 5.61.5 affected —
@clerk react affected
Version Status Constraints
>= 6.0.0, <= 6.4.2 affected —
@clerk vue affected
Version Status Constraints
>= 1.0.0, <= 1.17.20 affected —
>= 2.0.0, <= 2.0.15 affected —
@clerk astro affected
Version Status Constraints
>= 2.0.0, <= 2.17.10 affected —
>= 3.0.0, <= 3.0.17 affected —
@clerk nuxt affected
Version Status Constraints
>= 1.0.0, <= 1.13.28 affected —
>= 2.0.0, <= 2.2.4 affected —
@clerk clerk-expo affected
Version Status Constraints
>= 2.2.11, <= 2.19.35 affected —
@clerk expo affected
Version Status Constraints
>= 3.0.0, <= 3.2.1 affected —
@clerk react-router affected
Version Status Constraints
>= 0.0.1, <= 2.4.12 affected —
>= 3.0.0, <= 3.1.3 affected —
@clerk tanstack-react-start affected
Version Status Constraints
>= 0.0.1, <= 0.29.10 affected —
>= 1.0.0, <= 1.1.3 affected —
@clerk chrome-extension affected
Version Status Constraints
>= 1.3.5, <= 2.9.14 affected —
>= 3.0.0, <= 3.1.14 affected —
@clerk fastify affected
Version Status Constraints
>= 1.0.42, <= 2.6.30 affected —
>= 3.0.0, <= 3.1.15 affected —
@clerk express affected
Version Status Constraints
>= 0.1.0, <= 1.7.78 affected —
>= 2.0.0, <= 2.1.5 affected —
@clerk hono affected
Version Status Constraints
>= 0.0.2, <= 0.1.15 affected —

No data.

No data.

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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
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/clerk/javascript/security/advisories/GHSA-w24r-5266-9c3c cve-icon cve-icon
History

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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-05-11T16:08:27.869Z

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

Link: CVE-2026-42349

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

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

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

Link: CVE-2026-42349

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

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

Weaknesses