> CVE-2026-42349 [HIGH]

« BACK_TO_HOME
PUBLISHED
2026-05-11 17:16
MODIFIED
2026-05-11 17:16
CVSS_SCORE V3
7.6
EPSS (Prob. Exploit)
0.43%
Top 63.3%
DATA SOURCES:
NVD đź”— 2026-05-11 CWE MITRE đź”— 2026-11-01 FIRST EPSS đź”— 2026-10-25 GITHUB đź”— 2026-11-05 OSV đź”— 2026-09-20

> 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.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

CVSS_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/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

> MÉTRIQUES CVSS DÉTAILLÉES

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
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Network (N)
Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque)
Attack Complexity
Low (L)
Peu de conditions requises pour exploiter
PR (Privilèges Requis)
Privileges Required
Low (L)
Authentifié avec compte utilisateur basique
UI (Interaction Utilisateur)
User Interaction
None (N)
Aucune interaction utilisateur nécessaire
S (Périmètre)
Scope
Unchanged (U)
Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
High (H)
Divulgation totale d'informations
I (Impact Intégrité)
Integrity Impact
High (H)
Modification totale des données possible
A (Impact Disponibilité)
Availability Impact
None (N)
Aucune interruption de service

> RÉSUMÉ DES IMPACTS

Confidentialité
High
Divulgation totale d'informations
Intégrité
High
Modification totale des données possible
Disponibilité
None
Aucune interruption de service

> WEAKNESSES

CWE-754 CWE-863

> CWE DETAILED DESCRIPTIONS

CWE-754: Improper Check for Unusual or Exceptional Conditions - The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product. | CWE-863: Incorrect Authorization - The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

> GITHUB SECURITY ADVISORY

GHSA-w24r-5266-9c3c HIGH

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

AFFECTED PACKAGES:
NPM / @clerk/hono
>= 0.0.2, <= 0.1.15
Fixed in: 0.1.16
NPM / @clerk/express
>= 2.0.0, <= 2.1.5
Fixed in: 2.1.6
NPM / @clerk/express
>= 0.1.0, <= 1.7.78
Fixed in: 1.7.79
NPM / @clerk/fastify
>= 3.0.0, <= 3.1.15
Fixed in: 3.1.16
NPM / @clerk/fastify
>= 1.0.42, <= 2.6.30
Fixed in: 2.6.31
NPM / @clerk/chrome-extension
>= 3.0.0, <= 3.1.14
Fixed in: 3.1.15
NPM / @clerk/chrome-extension
>= 1.3.5, <= 2.9.14
Fixed in: 2.9.15
NPM / @clerk/tanstack-react-start
>= 1.0.0, <= 1.1.3
Fixed in: 1.1.4
NPM / @clerk/tanstack-react-start
>= 0.0.1, <= 0.29.10
Fixed in: 0.29.11
NPM / @clerk/react-router
>= 3.0.0, <= 3.1.3
Fixed in: 3.1.4

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Clerk: Authorization bypass when combining organization, billing, or reverification checks

AFFECTED PACKAGES:
Unknown / Unknown
6117 versions affected
ALIASES:
GHSA-w24r-5266-9c3c

> HISTORIQUE DES MODIFICATIONS

Première apparition
11/05/2026 17:16
Source: NVD
📊 ENRICHISSEMENT 01/06/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-754: Improper Check for Unusual or Exceptional Conditions - The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during ...
Total des modifications: 1 Dernière mise à jour: 5 months ago

> REFERENCES

https://github.com/clerk/javascript/security/advisories/GHSA-w24r-5266-9c3c
« BACK_TO_HOME