CVE-2026-84319: CWE-693: Protection Mechanism Failure in 0xJacky nginx-ui
Description
Nginx UI is a web user interface for the Nginx web server. Prior to 2.4.1, the regular HTTP configuration API rejects restricted Nginx directives such as load_module, js_import, and js_content. However, the MCP configuration interface allows a secondary authenticated user to write and apply equivalent restricted configuration content. This allows the user to load ngx_http_js_module.so, import attacker-controlled JavaScript, reload Nginx, and execute NJS in the Nginx worker context. This issue is fixed in version 2.4.1.
CVSS v3.1
Score 8.3high
Affected software
0xJacky
nginx-ui
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-09-01T16:17:43.080Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6acd4ec92cdf04f656d63e58
Added to database: 10/12/2026, 21:19:05 UTC
Last updated: 10/12/2026, 21:19:05 UTC
Views: 1
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