Missing Authentication for Critical Function Affecting github.com/0xjacky/nginx-ui/mcp package, versions <2.3.4
Threat Intelligence
Snyk has reported that there have been attempts or successful attacks targeting 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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Start learning- Snyk IDSNYK-GOLANG-GITHUBCOM0XJACKYNGINXUIMCP-15855280
- published31 Mar 2026
- disclosed30 Mar 2026
- creditYotam Perkal
Introduced: 30 Mar 2026
CVE-2026-33032 Â (opens in a new tab)How to fix?
Upgrade github.com/0xJacky/Nginx-UI/mcp to version 2.3.4 or higher.
Overview
Affected versions of this package are vulnerable to Missing Authentication for Critical Function in the mcp_message endpoint due to missing authentication checks and an empty default IP whitelist, which is treated as allowing all connections. An attacker can gain full control over the Nginx service, including restarting the server, modifying configuration files, and triggering configuration reloads by sending crafted HTTP requests to the exposed endpoint.