CVE-2026-84360highCWE-288

CVE-2026-84360: fallo de gravedad alta en 0xJacky nginx-ui

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

Publicada el · Actualizada el

Seguir esta CVE+ Monitorear nginx-ui+ Monitorear github.com/0xJacky/Nginx-UI

Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.

21Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

ssvc Trackcvss 8.1epss 0.4%
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Productos afectados
0xJacky · nginx-ui
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