CVE-2026-33027

Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.4, the nginx-ui configuration improperly handles URL-encoded traversal sequences. When specially crafted paths are supplied, the backend resolves them to the base Nginx configuration directory and executes the operation on the base directory (/etc/nginx). In particular, this allows an authenticated user to remove the entire /etc/nginx directory, resulting in a partial Denial of Service. This issue has been patched in version 2.3.4.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/0xJacky/nginx-ui/releases/tag/v2.3.4	Product Release Notes
https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-m8p8-53vf-8357	Exploit Vendor Advisory
https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-m8p8-53vf-8357	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:nginxui:nginx_ui:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-30 18:16

Updated : 2026-06-17 10:36

NVD link : CVE-2026-33027

Mitre link : CVE-2026-33027

CVE.ORG link : CVE-2026-33027

JSON object : View

Products Affected

nginxui

nginx_ui

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CWE-73

External Control of File Name or Path

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