Denial of Service Vulnerability in Nginx UI by Nginx
CVE-2026-33029

6.9MEDIUM

Key Information:

Vendor

0xjacky

Status
Nginx-ui
Vendor
CVE Published:
30 March 2026

What is CVE-2026-33029?

The Nginx UI, a web-based interface for the Nginx web server, contains an input validation flaw in its logrotate configuration. When an authenticated user submits a negative integer as the rotation interval, the backend may enter an infinite loop or an invalid state. This flaw can lead to a complete denial of service, making the web interface unresponsive. The issue has been effectively resolved in version 2.3.4.

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Deploy the Patch

Affected Version(s)

nginx-ui < 2.3.4

References

https://github.com/0xJacky/nginx-ui/security/advisories/G...
x_refsource_CONFIRM
https://github.com/0xJacky/nginx-ui/releases/tag/v2.3.4
x_refsource_MISC

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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