CVE-2026-33028 Details
Description
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.
A race condition vulnerability has been identified in Nginx UI versions prior to 2.3.4. The issue arises from a lack of synchronization mechanisms and non-atomic file writes, allowing concurrent requests to severely corrupt the primary configuration file, 'app.ini'. This corruption causes a persistent denial-of-service condition and creates a non-deterministic path for remote code execution through configuration cross-contamination.
Users are advised to update to Nginx UI version 2.3.4, where this vulnerability has been patched.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Mar 30, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/0xJacky/nginx-ui/releases/tag/v2.3.4 | [email protected] | ProductRelease Notes |
| https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-m468-xcm6-fxg4 | [email protected] | ExploitMitigationVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-362 | Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| nginxui nginx ui | < 2.3.4 |
CPE
Remediation
| |
| uozi cosy | < 1.30.1 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 1, 2026 | Initial Analysis | [email protected] |
| Mar 30, 2026 | New CVE Received | [email protected] |