CVE-2026-33029CWE-20

Nginx UI: DoS via Negative Integer Input in Logrotate Interval

Medium · published March 30, 2026

CVSS v4.0
6.9
EPSS
0%
Percentile
40.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
6.9 · MEDIUM
Vector
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
EPSS
0.00477 · 40.3th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2026-03-30T17:59Z
EPSS history
Timeline
  • 30 MAR 17:59Z
    Nginx UI: DoS via Negative Integer Input in Logrotate Interval
    cvelistv5