CVE-2026-33027
Last modified
CVE-2026-33027 is a medium-severity vulnerability rated 6.9/10 on the CVSS scale. 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. EPSS estimates a 0.40% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Nginxui | Nginx Ui | < 2.3.4 |
References
- https://github.com/0xJacky/nginx-ui/releases/tag/v2.3.4Product, Release Notes
- https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-m8p8-53vf-8357Exploit, Vendor Advisory
- https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-m8p8-53vf-8357Exploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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