CVE-2026-34403

Katalog CVE

CVSS 8.1 · High EPSS 0,22%

Kerentanan Missing Origin Validation in WebSockets pada nginxui nginx ui. Skor CVSS 3.1 8.1 (High) menurut NVD.

Deskripsi (NVD)

Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.5, all WebSocket endpoints in nginx-ui use a gorilla/websocket Upgrader with CheckOrigin unconditionally returning true, allowing Cross-Site WebSocket Hijacking (CSWSH). Combined with the fact that authentication tokens are stored in browser cookies (set via JavaScript without HttpOnly or explicit SameSite attributes), a malicious webpage can establish authenticated WebSocket connections to the nginx-ui instance when a logged-in administrator visits the attacker-controlled page. Version 2.3.5 patches the issue.

Rincian

Terbit di NVD

20 April 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-1385: Missing Origin Validation in WebSockets

EPSS (30 hari)

0,22% peluang dieksploitasi; lebih tinggi dari 11,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-78mf-482w-62qj exploit · mitigasi · advisory vendor
• https://github.com/0xJacky/nginx-ui/releases/tag/v2.3.5 product · release notes