Race Condition Affecting github.com/0xjacky/nginx-ui/settings package, versions <2.3.4
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOM0XJACKYNGINXUISETTINGS-15915611
- published6 Apr 2026
- disclosed30 Mar 2026
- creditUnknown
Introduced: 30 Mar 2026
CVE-2026-33028 Â (opens in a new tab)How to fix?
Upgrade github.com/0xJacky/Nginx-UI/settings to version 2.3.4 or higher.
Overview
github.com/0xJacky/Nginx-UI/settings is a yet another Nginx Web UI
Affected versions of this package are vulnerable to Race Condition through the settings update pipeline in api/settings/settings.go and settings/settings.go. An attacker can corrupt app.ini and disrupt service availability by sending concurrent settings-update requests.
Concurrent calls to settings.Update()/settings.Save() can interleave shared in-memory state changes with non-atomic file replacement, causing persistent configuration corruption and, in severe cases, a startup failure or service collapse.
**Notes**
- The vulnerable path is reached when authenticated users trigger settings changes, including
POST /api/settingsand related settings endpoints. - The issue affects the primary configuration file written by the application, so corruption can persist across restarts.