CVSS 4.0
7.1 highCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:NCVE-2026-33028
High (7.1). EPSS 0.6% chance of exploitation in the next 30 days. Fixed in github.com/uozi-tech/cosy 1.30.1.
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
CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H- EPSS
- 0.6% chance of exploitation in the next 30 days; higher than 46% of CVEs (scores of 2026-10-31)
- CWE
- CWE-362
- Published
- Modified
- Record from
- the NVD, synced
Affected
- nginxui:nginx_ui
- uozi:cosy
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-m468-xcm6-fxg4 | Go | github.com/0xJacky/Nginx-UI | <=1.99 | no fix published |
| GHSA-m468-xcm6-fxg4 | Go | github.com/uozi-tech/cosy | <1.30.1 | 1.30.1 |
| GO-2026-4906 | Go | github.com/0xJacky/Nginx-UI | all versions | no fix published |
| GO-2026-4906 | Go | github.com/uozi-tech/cosy | <1.30.1 | 1.30.1 |