Vulnerability details
CVE-2026-33028
0xJacky nginx-ui
Nginx UI: Race Condition Leads to Persistent Data Corruption and Service Collapse
CVSS 4.0
7.1High
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.1High | 4.0 | CVEProject cvelistV5 (CNA) (GitHub_M) | 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 |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| 0xJacky | nginx-ui | < 2.3.4 | CVEProject cvelistV5 (CNA) |
References and advisories
2- https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-m468-xcm6-fxg4 x_refsource_CONFIRM
- https://github.com/0xJacky/nginx-ui/releases/tag/v2.3.4 x_refsource_MISC
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Details
- Published
- 2026-03-30
- Last updated
- 2026-03-30
- State
- Published
- Assigner (CNA)
- GitHub_M
Exploit prediction (EPSS)
0.55%
Probability of exploitation in 30 days
46.4%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- Proof of concept
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')