CVE-2026-84318

Nginx UI is a web user interface for the Nginx web server. From 2.0.0-rc.6 until 2.4.1, the MCP tool nginxconfigadd writes nginx configuration files to disk and triggers an nginx reload without calling config.ValidateConfigFile. The identical flow in the REST API POST /api/configs does call that...

CVE-2026-84317

Nginx UI is a web user interface for the Nginx web server. Prior to 2.4.1, internal/config/validation.go ValidateConfigFile is a security control that blocks dangerous nginx directives — js, perl, loadmodule of the njs/perl modules, and user root. It is enforced on three of the four config-write...

CVE-2026-84360

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 /mcpmessage require only ordinary authentication before exposing nginxconfigadd and nginxconfigmodify. An OTP-enabled user with a normal JWT...

EUVD-2026-97907

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 /mcpmessage require only ordinary authentication before exposing nginxconfigadd and nginxconfigmodify. An OTP-enabled user with a normal JWT...

CVE-2026-84360 Nginx UI: OTP secure-session step-up can be bypassed via MCP configuration tools

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 /mcpmessage require only ordinary authentication before exposing nginxconfigadd and nginxconfigmodify. An OTP-enabled user with a normal JWT...

CVE-2026-84360

The Nginx UI web interface for the Nginx web server is vulnerable to an authentication bypass in versions prior to 2.4.1 . The root cause is that while HTTP configuration mutation routes require RequireSecureSession , the /mcp and /mcp_message endpoints only require ordinary authentication. This ...

CVE-2026-84317

Prior to version 2.4.1 , Nginx UI (a web user interface for the Nginx web server) contains a vulnerability where the mcp/config/config_add.go path (MCP tool nginx_config_add) fails to call the internal/config/validation.go security control. While other config-write paths block dangerous directive...

EUVD-2026-97908

Nginx UI is a web user interface for the Nginx web server. From 2.0.0-rc.6 until 2.4.1, the MCP tool nginxconfigadd writes nginx configuration files to disk and triggers an nginx reload without calling config.ValidateConfigFile. The identical flow in the REST API POST /api/configs does call that...

CVE-2026-84318 Nginx UI: MCP `nginx_config_add` Bypasses Directive Validation — Authenticated RCE

Nginx UI is a web user interface for the Nginx web server. From 2.0.0-rc.6 until 2.4.1, the MCP tool nginxconfigadd writes nginx configuration files to disk and triggers an nginx reload without calling config.ValidateConfigFile. The identical flow in the REST API POST /api/configs does call that...

CVE-2026-84318

Nginx UI versions from 2.0.0-rc.6 until 2.4.1 are vulnerable to an authenticated security bypass. The MCP tool nginx_config_add writes configuration files to disk and triggers a reload without invoking config.ValidateConfigFile. This differs from the REST API, which correctly rejects dangerous di...