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Vulnerability record · CVE-2026-44015 · published 12 May 2026

CVE-2026-44015: Nginxui nginx ui server-side request forgery (ssrf) vulnerability

Nginxui · Nginx Ui

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.

9.9 CVSS 3.1 Critical EPSS 0.39% · top 70.0% CWE-918 · Server-side request forgery (SSRF)
9.9CVSS 3.1 base score
0.39%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-wr32-99hh-6f35 ExploitVendor Advisory
https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-wr32-99hh-6f35 ExploitVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-44015), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.