CVE-2026-33029

MEDIUM

Nginx UI: DoS via Negative Integer Input in Logrotate Interval

Title source: cna
STIX 2.1

Description

Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.4, an input validation vulnerability in the logrotate configuration allows an authenticated user to cause a complete Denial of Service (DoS). By submitting a negative integer for the rotation interval, the backend enters an infinite loop or an invalid state, rendering the web interface unresponsive. This issue has been patched in version 2.3.4.

References (2)

Scores

CVSS v3 6.5
EPSS 0.0007
EPSS Percentile 21.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-20
Status published
Products (3)
0xJacky/Nginx-UI 0Go
0xJacky/nginx-ui < 2.3.4
nginxui/nginx_ui < 2.3.4
Published Mar 30, 2026
Tracked Since Mar 31, 2026