What’s Vulnerable › Vulnerabilities

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

• Severity: critical (CVSS 9.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-03-30 · updated 2026-06-17
• Weakness: CWE-78

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.

Affected products

• 0xJacky nginx-ui: through 2.3.3

References

• https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-5hf2-vhj6-gj9m
• https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-5hf2-vhj6-gj9m

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