> CVE-2026-46339 [CRITICAL]

« BACK_TO_HOME
PUBLISHED
2026-07-15 21:16
MODIFIED
2026-07-15 21:16
CVSS_SCORE V3
10.0
EPSS (Prob. Exploit)
3.35%
Top 11.4%
🎯 NUCLEI TEMPLATE
DATA SOURCES:
NVD 🔗 2026-07-15 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-10-25 GITHUB 🔗 2026-11-05 OSV 🔗 2026-11-02 NUCLEI 🔗 2026-08-14

> DESCRIPTION

9Router is an AI router & token saver. From 0.4.30 until 0.4.37, 9Router's src/proxy.js middleware did not protect /api/cli-tools/* and /api/mcp/*, allowing unauthenticated registration of customPlugins through src/app/api/cli-tools/cowork-settings/route.js and command execution through the MCP bridge. This vulnerability is fixed in 0.4.37.

> AFFECTED_PRODUCTS

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

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
EXPLOITABILITY
3.9
IMPACT
6.0

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
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
None (N)
Aucune authentification requise
UI (Interaction Utilisateur)
User Interaction
None (N)
Aucune interaction utilisateur nécessaire
S (Périmètre)
Scope
Changed (C)
Impact s'étend au-delà 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
High (H)
Interruption totale du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité
High
Divulgation totale d'informations
Intégrité
High
Modification totale des données possible
Disponibilité
High
Interruption totale du service possible

> WEAKNESSES

CWE-78 CWE-306

> CWE DETAILED DESCRIPTIONS

CWE-78: Improper Neutralization of Special Elements used in an OS Command - The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command before it is sent to a downstream component. | CWE-306: Missing Authentication for Critical Functionality - The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

> GITHUB SECURITY ADVISORY

GHSA-fhh6-4qxv-rpqj CRITICAL

9router: Unauthenticated Remote Code Execution via unprotected MCP custom plugin routes

AFFECTED PACKAGES:
NPM / 9router
>= 0.4.30, < 0.4.37
Fixed in: 0.4.37

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

9Router: Unauthenticated Remote Code Execution via unprotected MCP custom plugin routes

AFFECTED PACKAGES:
Unknown / Unknown
4 versions affected
ALIASES:
GHSA-fhh6-4qxv-rpqj

> NUCLEI TEMPLATES

Des templates Nuclei sont disponibles pour scanner cette vulnérabilité.

🎯
CVE-2026-46339.yaml
http/cves/2026/CVE-2026-46339.yaml
Usage: nuclei -t http/cves/2026/CVE-2026-46339.yaml -u target.com

> HISTORIQUE DES MODIFICATIONS

Première apparition
15/07/2026 21:16
Source: NVD
📊 ENRICHISSEMENT 01/11/2026 06:59
CWE
Champ modifié: Description CWE
Ancienne valeur:
CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') - The product constructs all or part of an OS command using externally-influenced input from an upstr...
Nouvelle valeur:
CWE-78: Improper Neutralization of Special Elements used in an OS Command - The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it doe...
📊 ENRICHISSEMENT 01/08/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') - The product constructs all or part of an OS command using externally-influenced input from an upstr...
Total des modifications: 2 Dernière mise à jour: 5 days ago

> REFERENCES

https://github.com/decolua/9router/commit/992f4db4a0d858bcc86b4786f2abab117a6ccd...
https://github.com/decolua/9router/security/advisories/GHSA-fhh6-4qxv-rpqj
« BACK_TO_HOME