CVE-2026-42221

Katalog CVE

CVSS 9.8 · Critical EPSS 1,6%

Kerentanan Missing Authentication for Critical Function pada nginxui nginx ui. Skor CVSS 3.1 9.8 (Critical) menurut NVD.

Deskripsi (NVD)

Nginx UI is a web user interface for the Nginx web server. From version 2.0.0 to before version 2.3.8, an unauthenticated network attacker can claim the initial administrator account on a fresh nginx-ui instance during the first-run setup window. The public /api/install endpoint is reachable without authentication, and the request-encryption flow only protects payload confidentiality in transit; it does not authenticate who is allowed to perform installation. A remote attacker who reaches the service before the legitimate operator can set the admin email, username, and password, causing permanent initial-instance takeover. This issue has been patched in version 2.3.8.

Rincian

Terbit di NVD

4 Mei 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

9.8 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-306: Missing Authentication for Critical Function

EPSS (30 hari)

1,6% peluang dieksploitasi; lebih tinggi dari 75,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-h27v-ph7w-m9fp exploit · mitigasi · advisory vendor
• https://github.com/0xJacky/nginx-ui/releases/tag/v2.3.8 release notes