Server-Side Request Forgery Vulnerability in Nginx UI by Nginx
CVE-2026-44015

8.5HIGH

Key Information:

Vendor

0xjacky

Status
Nginx-ui
Vendor
CVE Published:
12 May 2026

What is CVE-2026-44015?

The Nginx UI web interface, up to version 2.3.4, is susceptible to a Server-Side Request Forgery (SSRF) attack. An authenticated user can exploit this vulnerability by creating a cluster node that directs to any internal URL. By sending API requests with the X-Node-ID header, the Proxy middleware forwards these requests to the specified internal addresses. This process allows attackers to bypass network segmentation protocols and gain access to sensitive services limited to localhost or internal networks.

Affected Version(s)

nginx-ui <= 2.3.4

References

https://github.com/0xJacky/nginx-ui/security/advisories/G...
x_refsource_CONFIRM

CVSS V3.1

Score:
8.5
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.