> CVE-2026-42222 [HIGH]

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PUBLISHED
2026-05-04 21:16
MODIFIED
2026-05-04 21:16
CVSS_SCORE V3
8.1
EPSS (Prob. Exploit)
0.47%
Top 59.9%
DATA SOURCES:
NVD 🔗 2026-05-04 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-10-25 GITHUB 🔗 2026-11-05 OSV 🔗 2026-09-13

> DESCRIPTION

Nginx UI is a web user interface for the Nginx web server. In version 2.3.5, an unauthenticated bootstrap takeover exists in nginx-ui during the initial installation window exposed by POST /api/install. At time of publication no public patches are available.

> 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:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EXPLOITABILITY
2.2
IMPACT
5.9

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/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
High (H)
Conditions spécifiques doivent être réunies 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
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
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-284 CWE-306

> CWE DETAILED DESCRIPTIONS

CWE-284: Improper Access Control - The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. | 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-mxqh-q9h6-v8pq HIGH

Nginx-UI: Unauthenticated first-boot instance claim via POST /api/install allows remote bootstrap takeover

AFFECTED PACKAGES:
GO / github.com/0xJacky/nginx-ui
= 2.3.5

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

nginx-ui: Unauthenticated first-boot instance claim via POST /api/install allows remote bootstrap takeover

AFFECTED PACKAGES:
Unknown / Unknown
3 versions affected
ALIASES:
GHSA-mxqh-q9h6-v8pq, GO-2026-5521

> HISTORIQUE DES MODIFICATIONS

Première apparition
04/05/2026 21:16
Source: NVD
📊 ENRICHISSEMENT 01/11/2026 06:59
CWE
Champ modifié: Description CWE
Ancienne valeur:
CWE-284: Improper Access Control - The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. | CWE-306: Missing Authentication for Critical Function - The...
Nouvelle valeur:
CWE-284: Improper Access Control - The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. | CWE-306: Missing Authentication for Critical Functionality ...
📊 ENRICHISSEMENT 01/06/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-284: Improper Access Control - The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. | CWE-306: Missing Authentication for Critical Function - The...
Total des modifications: 2 Dernière mise à jour: 1 week ago

> REFERENCES

https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-mxqh-q9h6-v8pq
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