CVE-2026-84319
Published:October 12, 2026
Updated:October 13, 2026
Nginx UI is a web user interface for the Nginx web server. Prior to 2.4.1, the regular HTTP configuration API rejects restricted Nginx directives such as load_module, js_import, and js_content. However, the MCP configuration interface allows a secondary authenticated user to write and apply equivalent restricted configuration content. This allows the user to load ngx_http_js_module.so, import attacker-controlled JavaScript, reload Nginx, and execute NJS in the Nginx worker context. This issue is fixed in version 2.4.1.
Affected Packages
https://github.com/0xJacky/nginx-ui.git (GITHUB):
Affected version(s) =v2.4.0 <v2.4.1Fix Suggestion:
Update to version v2.4.1github.com/0xJacky/Nginx-UI (GO):
Affected version(s) =v1.9.10-0.20260613100722-6053fa0d5488 <v1.9.10-0.20260703134738-0540f3ecf782Fix Suggestion:
Update to version v1.9.10-0.20260703134738-0540f3ecf782Related Resources (3)
Do you need more information?
Contact UsCVSS v4
Base Score:
7.2
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Protection Mechanism Failure