CVE-2026-44015

CRITICAL CVSS 3.1: 9.9 EPSS 0.32%
Updated Jun 17, 2026
Nginxui
Parameter Value
CVSS 9.9 (CRITICAL)
Affected Versions before 2.3.4
Type CWE-918 (Server-Side Request Forgery (SSRF))
Vendor Nginxui
Public PoC No

Nginx UI is a web user interface for the Nginx web server. In 2.3.4 and earlier, an authenticated user can perform Server-Side Request Forgery (SSRF) by creating a cluster node pointing to an arbitrary internal URL and then sending API requests with the X-Node-ID header. The Proxy middleware forwards these requests to the attacker-specified internal address, bypassing network segmentation and enabling access to services bound to localhost or internal networks.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Nginxui Nginx_Ui
cpe:2.3:a:nginxui:nginx_ui:*:*:*:*:*:*:*:*
<= 2.3.4