---
id: CVE-2026-84360
title: Nginx UI is a web user interface for the Nginx web server
summary: >-
  Nginx UI is a web user interface for the Nginx web server. Prior to 2.4.1, the
  HTTP configuration mutation routes require RequireSecureSession, but /mcp and
  /mcp_message require only ordinary authentication before exposing
  nginx_config_a…
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H'
cwe:
  - CWE-288
published: '2026-10-12'
updated: '2026-10-12'
sourceUpdated: '2026-10-12T21:17:22.960'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-84360'
references:
  - url: >-
      https://github.com/0xJacky/nginx-ui/commit/23d1934099b05b2a01589b48129dc3d3159d91c2
    label: security-advisories@github.com
  - url: 'https://github.com/0xJacky/nginx-ui/releases/tag/v2.4.1'
    label: security-advisories@github.com
  - url: >-
      https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-vc32-4gwf-77xp
    label: security-advisories@github.com
tags:
  - nvd
ingestedAt: '2026-10-12T22:05:40.370Z'
---

## Overview

Nginx UI is a web user interface for the Nginx web server. Prior to 2.4.1, the HTTP configuration mutation routes require RequireSecureSession, but /mcp and /mcp_message require only ordinary authentication before exposing nginx_config_add and nginx_config_modify. An OTP-enabled user with a normal JWT but no valid X-Secure-Session-ID can therefore create or modify Nginx configuration and trigger reload behavior through MCP, bypassing the intended step-up control. This issue is fixed in version 2.4.1.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.