{"id":"CVE-2026-84319","published":"2026-10-12T21:17:22.517","lastModified":"2026-10-13T21:19:11.433","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.","cvssScore":8.3,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H","cwes":["CWE-693"],"vendors":[],"products":[],"references":[{"url":"https://github.com/0xJacky/nginx-ui/commit/23d1934099b05b2a01589b48129dc3d3159d91c2","tags":[]},{"url":"https://github.com/0xJacky/nginx-ui/releases/tag/v2.4.1","tags":[]},{"url":"https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-5r62-gj48-897x","tags":[]}],"exploitRefs":[{"url":"https://github.com/0xJacky/nginx-ui/commit/23d1934099b05b2a01589b48129dc3d3159d91c2","tags":[]},{"url":"https://github.com/0xJacky/nginx-ui/releases/tag/v2.4.1","tags":[]},{"url":"https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-5r62-gj48-897x","tags":[]}],"hasPoc":true,"ai":null}