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CVE-2026-44015— Nginx UI: Server-Side Request Forgery (SSRF) via Cluster Proxy Middleware Allows Access to Internal Services

CVSS 8.5 · High EPSS 0.01% · P2

Affected Version Matrix 1

VendorProductVersion RangeStatus
0xJackynginx-ui<= 2.3.4affected
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I. Basic Information for CVE-2026-44015

Vulnerability Information
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Vulnerability Title
Nginx UI: Server-Side Request Forgery (SSRF) via Cluster Proxy Middleware Allows Access to Internal Services
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
服务端请求伪造(SSRF)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Nginx UI 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nginx UI是Jacky个人开发者的一个 Nginx 的 WebUI。 Nginx UI 2.3.4及之前版本存在代码问题漏洞，该漏洞源于经过身份验证的用户可通过创建指向任意内部URL的集群节点并发送带有X-Node-ID标头的API请求，导致SSRF攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
0xJackynginx-ui <= 2.3.4 -

II. Public POCs for CVE-2026-44015

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III. Intelligence Information for CVE-2026-44015

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Vendor Advisories for CVE-2026-44015 (1)

IV. Related Vulnerabilities

Same product: nginx-ui
Same vendor: 0xJacky
Same weakness: CWE-918

V. Comments for CVE-2026-44015

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