CVE Tools
Sign in

CVE-2026-44015

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

Published: May 12, 2026Updated: May 14, 2026 Sources: CVE List NVD BDUCWE-918
NVD MITRE
8.5CVSSHIGH
EPSS Score
0.3%
Top 76.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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 Vector Breakdown

AV:NAC:LPR:LUI:NS:CC:HI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:LIntegrity
Low
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-918

Affected Products

Nginx UIСообщество свободного программного обеспечения
On-prem
Web & CMS Plugins
nginx-ui0xJacky
Mixed
Cloud & SaaS / saas-application
nginx uinginxui
On-prem
Networking Infrastructure / network-management
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
0xjackyindividual-devCloud & SaaSaka nginx-ui
nginxuicommercialNetworking Infrastructureaka nginx ui, nginxui

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Command and Control
Initial Access
View detailed technique mapping

References

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

Timeline

Published
May 12, 2026
Last Updated
May 14, 2026

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2026-44015 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows