EUVD-2026-97907

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

GHSA-VC32-4GWF-77XP Nginx UI: OTP secure-session step-up can be bypassed via MCP configuration tools

Summary An OTP-enabled authenticated user who cannot use the HTTP configuration mutation endpoints without a valid secure session can still mutate Nginx configuration through /mcp and /mcpmessage using only ordinary authentication. Details The HTTP configuration mutation surface is explicitly...

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

Summary An OTP-enabled authenticated user who cannot use the HTTP configuration mutation endpoints without a valid secure session can still mutate Nginx configuration through /mcp and /mcpmessage using only ordinary authentication. Details The HTTP configuration mutation surface is explicitly...

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...

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-2026-84360 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-2026-84316 Nginx UI: nginx config directive denylist (ValidateConfigFile) is bypassable via same-line ";" separation → authenticated directive injection (RCE on the official image)

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-2026-84316

The Nginx UI web user interface (versions prior to 2.4.1 ) is vulnerable to a validation bypass in the config.ValidateConfigDirectives function. The software incorrectly splits configuration by newline and only validates the first token, allowing an authenticated caller to append restricted direc...