CVE-2026-44015: 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…

PriorityP265critical9.9CVSS 3.1

AVNACLPRLUINSCCHIHAH

EPSS

0.32%

23.5th percentile

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.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
0xjacky	nginx-ui	<= 2.3.4	—
nginxui	nginx_ui	<= 2.3.4	—

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