CVE-2026-33032 Nginx UI: Unauthenticated MCP Endpoint Allows Remote Nginx Takeover

Nginx UI is a web user interface for the Nginx web server. In versions 2.3.5 and prior, the nginx-ui MCP Model Context Protocol integration exposes two HTTP endpoints: /mcp and /mcpmessage. While /mcp requires both IP whitelisting and authentication AuthRequired middleware, the /mcpmessage endpoi...

CVE-2026-33032

CVE-2026-33032 affects nginx-ui prior to 2.3.4. The MCP integration exposes two HTTP endpoints: /mcp (protected by AuthRequired) and /mcp_message (no authentication). The default IPWhiteList is empty, which the middleware treats as “allow all,” enabling unauthenticated MCP tool invocations (e.g.,...

CVE-2026-33032 Nginx UI: Unauthenticated MCP Endpoint Allows Remote Nginx Takeover

Nginx UI is a web user interface for the Nginx web server. In versions 2.3.5 and prior, the nginx-ui MCP Model Context Protocol integration exposes two HTTP endpoints: /mcp and /mcpmessage. While /mcp requires both IP whitelisting and authentication AuthRequired middleware, the /mcpmessage endpoi...

EUVD-2026-17158

nginx-ui's Unauthenticated MCP Endpoint Allows Remote Nginx Takeover...

EUVD-2026-17156

nginx-UI has Unencrypted Storage of DNS API Tokens and ACME Private Keys...

GHSA-5HF2-VHJ6-GJ9M nginx-UI has Unencrypted Storage of DNS API Tokens and ACME Private Keys

Summary Nginx-UI contains an Insecure Direct Object Reference IDOR vulnerability that allows any authenticated user to access, modify, and delete resources belonging to other users. The application's base Model struct lacks a userid field, and all resource endpoints perform queries by ID without...

nginx-UI has Unencrypted Storage of DNS API Tokens and ACME Private Keys

Summary Nginx-UI contains an Insecure Direct Object Reference IDOR vulnerability that allows any authenticated user to access, modify, and delete resources belonging to other users. The application's base Model struct lacks a userid field, and all resource endpoints perform queries by ID without...

Unchecked Input for Loop Condition

Overview Affected versions of this package are vulnerable to Unchecked Input for Loop Condition due to improper input validation in the POST /api/settings handler for the logrotate.interval field. An attacker can make the web interface unresponsive by submitting a negative interval value, causing...

EUVD-2026-17154

nginx-ui Vulnerable to DoS via Negative Integer Input in Logrotate Interval...

GHSA-CP8R-8JVW-V3QG nginx-ui Vulnerable to DoS via Negative Integer Input in Logrotate Interval

Summary An input validation vulnerability in the logrotate configuration allows an authenticated user to cause a complete Denial of Service DoS. By submitting a negative integer for the rotation interval, the backend enters an infinite loop or an invalid state, rendering the web interface...

GHSA-M468-XCM6-FXG4 nginx-ui has Race Condition that Leads to Persistent Data Corruption and Service Collapse

Summary The nginx-ui application is vulnerable to a Race Condition. Due to the complete absence of synchronization mechanisms Mutex and non-atomic file writes, concurrent requests lead to the severe corruption of the primary configuration file app.ini. This vulnerability results in a persistent...

nginx-ui has Race Condition that Leads to Persistent Data Corruption and Service Collapse

Summary The nginx-ui application is vulnerable to a Race Condition. Due to the complete absence of synchronization mechanisms Mutex and non-atomic file writes, concurrent requests lead to the severe corruption of the primary configuration file app.ini. This vulnerability results in a persistent...

GHSA-FHH2-GG7W-GWPQ nginx-ui Backup Restore Allows Tampering with Encrypted Backups

Summary The nginx-ui backup restore mechanism allows attackers to tamper with encrypted backup archives and inject malicious configuration during restoration. Details The backup format lacks a trusted integrity root. Although files are encrypted, the encryption key and IV are provided to the clie...

nginx-ui Backup Restore Allows Tampering with Encrypted Backups

Summary The nginx-ui backup restore mechanism allows attackers to tamper with encrypted backup archives and inject malicious configuration during restoration. Details The backup format lacks a trusted integrity root. Although files are encrypted, the encryption key and IV are provided to the clie...

CVE-2026-33032: Missing Authentication for Critical Function

Nginx UI is a web user interface for the Nginx web server. In versions 2.3.5 and prior, the nginx-ui MCP Model Context Protocol integration exposes two HTTP endpoints: /mcp and /mcpmessage. While /mcp requires both IP whitelisting and authentication AuthRequired middleware, the /mcpmessage endpoi...

Nginx UI security vulnerabilities

Nginx UI is a web interface for Nginx developed by Jacky. Versions of Nginx UI prior to 2.3.4 contained security vulnerabilities. These vulnerabilities stemmed from improper handling of URL-encoded traversal sequences, which could allow authenticated users to delete the entire /etc/nginx director...

nginx-ui Backup Restore Allows Tampering with Encrypted Backups

The nginx-ui backup restore mechanism allows attackers to tamper with encrypted backup archives and inject malicious configuration during restoration...

PT-2026-29088

Name of the Vulnerable Software and Affected Versions Nginx UI versions prior to 2.3.4 Description Nginx UI improperly handles URL-encoded traversal sequences in its configuration, potentially leading to a partial Denial of Service. Specifically, specially crafted paths can cause the backend to...

PT-2026-29089

Name of the Vulnerable Software and Affected Versions Nginx UI versions prior to 2.3.4 Description Nginx UI is susceptible to a race condition due to the absence of synchronization mechanisms and non-atomic file writes. Concurrent requests can severely corrupt the primary configuration file...

Nginx UI input validation error vulnerability

Nginx UI is a web interface for Nginx developed by Jacky. Versions of Nginx UI prior to 2.3.4 contained a vulnerability related to input validation. This vulnerability stemmed from issues with input validation in the logrotate configuration. It allowed authenticated users to cause the web interfa...