---
id: CVE-2026-84316
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,
  config.ValidateConfigDirectives splits configuration by newline and checks
  only the first directive token on each line even though Nginx permits multiple
  semicolo…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-20
  - CWE-184
published: '2026-10-12'
updated: '2026-10-12'
sourceUpdated: '2026-10-12T21:17:22.067'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-84316'
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-cf23-7qxj-xmhr
    label: security-advisories@github.com
tags:
  - nvd
ingestedAt: '2026-10-12T22:05:40.368Z'
---

## Overview

Nginx UI is a web user interface for the Nginx web server. Prior to 2.4.1, config.ValidateConfigDirectives splits configuration by newline and checks only the first directive token on each line even though Nginx permits multiple semicolon-separated directives on one line. An authenticated caller can place a benign directive first and a restricted load_module, js_import, perl, or user root directive later on the same line, or can use an unrestricted include directive to load restricted content. These mechanisms bypass validation on REST, nginx_config_modify, site, and stream write paths; when an executable module is available, the injected configuration can execute code in the Nginx worker context. This issue is fixed in version 2.4.1.

## Remediation

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