CVE-2026-33027
Medium
Description
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.
SeverityMedium
CVSS6.5
Exploit probability—
ProductNginxui Nginx Ui
PublishedMar 30, 2026
First seenMar 30, 2026
Weakness typeCWE-22Path traversalCWE-73CWE-73
How to fix
Update
- nginxui nginx_ui2.3.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| nginxui nginx_ui | v < 2.3.4 | 2.3.4 |
| github.com/0xJacky/Nginx-UIGo | v ≤ 1.99, No range specified | — |
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