CVE-2026-42349
8.1 HIGHClerk JavaScript is the official JavaScript repository for Clerk authentication
Published: 2026-05-11 · Last updated: 2026-06-01
Severity and scoring
- CVSS
- 8.1 HIGH
- Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- CWE
- CWE-754, CWE-863
Affected products
| Vendor | Product |
|---|---|
| clerk | clerk\/astro, clerk\/backend, clerk\/chrome-extension |
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.
Source: NVD
References
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