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.
History

Mon, 30 Mar 2026 18:15:00 +0000

Type Values Removed Values Added
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.
Title Nginx UI: Race Condition Leads to Persistent Data Corruption and Service Collapse
Weaknesses CWE-362
References
Metrics cvssV4_0

{'score': 7.1, '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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-03-30T20:15:26.098Z

Reserved: 2026-03-17T17:22:14.669Z

Link: CVE-2026-33028

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-03-30T18:16:18.947

Modified: 2026-03-30T18:16:18.947

Link: CVE-2026-33028

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.