CVE-2026-33030 HIGH

CVE-2026-33030: Nginx UI: Unencrypted Storage of DNS API Tokens and ACME Private Keys

Vendor 0Xjacky
Product nginx-ui
Weakness CWE-78
Published March 30, 2026
Last update March 31, 2026

CVSS base score

8.8/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

What the vulnerability does

Description

Nginx UI is a web user interface for the Nginx web server. In versions 2.3.3 and prior, Nginx-UI contains an Insecure Direct Object Reference (IDOR) vulnerability that allows any authenticated user to access, modify, and delete resources belonging to other users. The application's base Model struct lacks a user_id field, and all resource endpoints perform queries by ID without verifying user ownership, enabling complete authorization bypass in multi-user environments. At time of publication, there are no publicly available patches.

Key dates

Disclosure timeline

March 30, 2026 CVE published
March 31, 2026 Record updated