GHSA-CF23-7QXJ-XMHR Nginx UI: nginx config directive denylist (ValidateConfigFile) is bypassable via same-line ";" separation → authenticated directive injection (RCE on the official image)

Summary config.ValidateConfigFile is the security control that blocks dangerous nginx directives js, perl, loadmodule of njs/perl modules, user root. Its directive scanner is bypassable: it splits the config by newlines and inspects only the FIRST token of each line, but nginx separates directive...

GHSA-5R62-GJ48-897X Nginx UI: MCP configuration tools bypass restricted directive validation and allow secondary authenticated users to execute NJS in Nginx worker context

Summary The regular HTTP configuration API rejects restricted Nginx directives such as loadmodule, jsimport, and jscontent. However, the MCP configuration interface allows a secondary authenticated user to write and apply equivalent restricted configuration content. In the lab, this allowed the...

Nginx UI: MCP configuration tools bypass restricted directive validation and allow secondary authenticated users to execute NJS in Nginx worker context

Summary The regular HTTP configuration API rejects restricted Nginx directives such as loadmodule, jsimport, and jscontent. However, the MCP configuration interface allows a secondary authenticated user to write and apply equivalent restricted configuration content. In the lab, this allowed the...

CVE-2026-84316

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...

CVE-2026-84319

The Nginx UI web interface for the Nginx web server is vulnerable to a protection mechanism failure in versions prior to 2.4.1 . While the regular HTTP configuration API correctly rejects restricted directives like load_module, js_import, and js_content, the MCP configuration interface fails to d...

PT-2026-110974

Name of the Vulnerable Software and Affected Versions Nginx UI versions prior to 2.4.1 Description An authenticated user can bypass configuration validation because the config.ValidateConfigDirectives function only checks the first directive token on each line, ignoring subsequent...

ALPINE-CVE-2026-56434

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpssimodule module. This vulnerability may exist when the Server-Side Includes SSI, proxypass, and proxybuffering off directives are configured. With this configuration, an unauthenticated attacker with man-in-the-middle MITM abili...

CVE-2026-60005

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpslicemodule module. When the slice directive and unnamed regex captures are configured or when a background cache update happens, unauthenticated attackers can send requests that may cause uninitialized memory access in the NGINX...

CVE-2026-42945

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttprewritemodule module. This vulnerability exists when the rewrite directive is followed by a rewrite, if, or set directive and an unnamed Perl-Compatible Regular Expression PCRE capture for example, $1, $2 with a replacement strin...

Linux Distros Unpatched Vulnerability : CVE-2021-42717

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ModSecurity 3.x through 3.0.5 mishandles excessively nested JSON objects. Crafted JSON objects with nesting tens-of-thousands deep could result in the web serve...

Mageia: Security Advisory (MGASA-2024-0286)

The remote host is missing an update for the SPDX-FileCopyrightText: 2024 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Internet Bug Bounty: CVE-2024-7347: Buffer overread in the ngx_http_mp4_module

CVE-2024-7347 was a vulnerability in the ngxhttpmp4module of NGINX Open Source and NGINX Plus. The vulnerability could have allowed an attacker to over-read NGINX worker memory, resulting in its termination, using a specially crafted MP4 file. The issue only affected NGINX if it was built with th...

Internet Bug Bounty: CVE-2024-31079 in nginx

CVE-2024-31079 was discovered in the NGINX HTTP/3 QUIC module. When NGINX Plus or NGINX OSS were configured to use this module, undisclosed HTTP/3 requests could cause NGINX worker processes to terminate or experience other potential impact. The vulnerability was classified as a stack-based buffe...

CVE-2021-42717

ModSecurity 3.x through 3.0.5 mishandles excessively nested JSON objects. Crafted JSON objects with nesting tens-of-thousands deep could result in the web server being unable to service legitimate requests. Even a moderately large e.g., 300KB HTTP request can occupy one of the limited NGINX worke...