CVE-2026-33028 (GCVE-0-2026-33028)
Vulnerability from cvelistv5 – Published: 2026-03-30 17:59 – Updated: 2026-03-30 20:15
VLAI
EPSS
VEX
Title
Nginx UI: Race Condition Leads to Persistent Data Corruption and Service Collapse
Summary
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.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-30 20:15 UTC
CWE
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
GitHub_M
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/0xJacky/nginx-ui/security/advi… | x_refsource_CONFIRM |
| https://github.com/0xJacky/nginx-ui/releases/tag/v2.3.4 | x_refsource_MISC |
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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