Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2026-42349

29
FAUCET Score

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.

First published: May 11, 2026Last modified: May 11, 2026

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.0.0, < 2.17.11CPE matchmatch criteria
cpe:2.3:a:clerk:clerk\/astro:*:*:*:*:*:node.js:*:*
>= 3.0.0, < 3.0.18CPE matchmatch criteria
cpe:2.3:a:clerk:clerk\/astro:*:*:*:*:*:node.js:*:*
>= 2.0.0, < 2.33.3CPE matchmatch criteria
cpe:2.3:a:clerk:clerk\/backend:*:*:*:*:*:node.js:*:*
>= 3.0.0, < 3.2.14CPE matchmatch criteria
cpe:2.3:a:clerk:clerk\/backend:*:*:*:*:*:node.js:*:*
>= 1.3.5, < 2.9.15CPE matchmatch criteria
cpe:2.3:a:clerk:clerk\/chrome-extension:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 4.0

7.6HIGH

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
LOW
User Interaction
NONE
VS Confidentiality
HIGH
VS Integrity
HIGH
VS Availability
NONE
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.25%
Probability of exploitation in next 30 days
EPSS Percentile
15.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0025 is in the 4th percentile among its peer group of 17,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (30)

npmpatch availablevia ghsa
Product: @clerk/sharedFixed in: 3.47.5
npmpatch availablevia ghsa
Product: @clerk/sharedFixed in: 4.8.3
npmpatch availablevia ghsa
Product: @clerk/backendFixed in: 2.33.3
npmpatch availablevia ghsa
Product: @clerk/backendFixed in: 3.2.14
npmpatch availablevia ghsa
Product: @clerk/nextjsFixed in: 6.39.3
npmpatch availablevia ghsa
Product: @clerk/nextjsFixed in: 7.2.4
npmpatch availablevia ghsa
Product: @clerk/clerk-jsFixed in: 5.125.10
npmpatch availablevia ghsa
Product: @clerk/clerk-jsFixed in: 6.7.5
npmpatch availablevia ghsa
Product: @clerk/clerk-reactFixed in: 5.61.6
npmpatch availablevia ghsa
Product: @clerk/reactFixed in: 6.4.3
npmpatch availablevia ghsa
Product: @clerk/vueFixed in: 1.17.21
npmpatch availablevia ghsa
Product: @clerk/vueFixed in: 2.0.16
npmpatch availablevia ghsa
Product: @clerk/astroFixed in: 2.17.11
npmpatch availablevia ghsa
Product: @clerk/astroFixed in: 3.0.18
npmpatch availablevia ghsa
Product: @clerk/nuxtFixed in: 1.13.29
npmpatch availablevia ghsa
Product: @clerk/nuxtFixed in: 2.2.5
npmpatch availablevia ghsa
Product: @clerk/clerk-expoFixed in: 2.19.36
npmpatch availablevia ghsa
Product: @clerk/expoFixed in: 3.2.2
npmpatch availablevia ghsa
Product: @clerk/react-routerFixed in: 2.4.13
npmpatch availablevia ghsa
Product: @clerk/react-routerFixed in: 3.1.4
npmpatch availablevia ghsa
Product: @clerk/tanstack-react-startFixed in: 0.29.11
npmpatch availablevia ghsa
Product: @clerk/tanstack-react-startFixed in: 1.1.4
npmpatch availablevia ghsa
Product: @clerk/chrome-extensionFixed in: 2.9.15
npmpatch availablevia ghsa
Product: @clerk/chrome-extensionFixed in: 3.1.15
npmpatch availablevia ghsa
Product: @clerk/fastifyFixed in: 2.6.31
npmpatch availablevia ghsa
Product: @clerk/fastifyFixed in: 3.1.16
npmpatch availablevia ghsa
Product: @clerk/expressFixed in: 1.7.79
npmpatch availablevia ghsa
Product: @clerk/expressFixed in: 2.1.6
npmpatch availablevia ghsa
Product: @clerk/honoFixed in: 0.1.16
github_advisoryworkaround availablevia nvd_reference
View patch

Vendor Advisories (1)

npmGHSA-w24r-5266-9c3chigh

Clerk has an authorization bypass when combining organization, billing, or reverification checks

Apr 30, 2026

References

github.com / clerk/javascript/security/advisories/GHSA-w24r-5266-9c3c
MitigationVendor Advisory