CVE-2026-33028CWE-362

Nginx UI: Race Condition Leads to Persistent Data Corruption and Service Collapse

High · published March 30, 2026

CVSS v4.0
7.1
EPSS
1%
Percentile
47.6
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, the nginx-ui application is vulnerable to a Race Condition. Due to the complete absence of synchronization mechanisms (Mutex) and non-atomic file writes, concurrent requests lead to the severe corruption of the primary configuration file (app.ini). This vulnerability results in a persistent Denial of Service (DoS) and introduces a non-deterministic path for Remote Code Execution (RCE) through configuration cross-contamination. This issue has been patched in version 2.3.4.

The record
Technical detail
CVSS v4.0
7.1 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00592 · 47.6th percentile
Weakness
CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Published
2026-03-30T17:59Z
EPSS history
Timeline
  • 30 MAR 17:59Z
    Nginx UI: Race Condition Leads to Persistent Data Corruption and Service Collapse
    cvelistv5