--- title: "CVE-2026-84318: Nginx UI - Remote Code Execution" description: "Nginx UI 2.0.0-rc.6 to 2.4.1 contains a remote code execution caused by missing config validation in MCP tool nginx_config_add, letting authenticated attackers execute code by writing dangerous config directives." url: https://panop.io/threat-heartbeat/CVE-2026-84318/ --- # CVE-2026-84318 Nginx UI - Remote Code Execution Nginx UI 2.0.0-rc.6 to 2.4.1 contains a remote code execution caused by missing config validation in MCP tool nginx\_config\_add, letting authenticated attackers execute code by writing dangerous config directives. CVSS base score 8.8 /10 High CISA KEV Not listed Public exploit None known Authentication Required EPSS 0.62% chance of exploitation in 30 days [View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-84318) ## Details Type Remote Code Execution Impact Remote Code Execution CVSS vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Published 12 October 2026 Updated 15 October 2026 Weakness [CWE-693](https://cwe.mitre.org/data/definitions/693.html) ## Vendor fix Update to version 2.4.1 or later. Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them. ## References - [https://nvd.nist.gov/vuln/detail/CVE-2026-84318](https://nvd.nist.gov/vuln/detail/CVE-2026-84318) - [https://github.com/0xJacky/nginx-ui/releases/tag/v2.4.1](https://github.com/0xJacky/nginx-ui/releases/tag/v2.4.1) - [https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-9jww-cxg5-rj9m](https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-9jww-cxg5-rj9m) - [https://github.com/0xJacky/nginx-ui/commit/23d1934099b05b2a01589b48129dc3d3159d91c2](https://github.com/0xJacky/nginx-ui/commit/23d1934099b05b2a01589b48129dc3d3159d91c2) [← All CVEs](https://panop.io/threat-heartbeat/) ## What this record can't tell you - Whether you run the affected software, and where - Whether an attacker can actually reach and exploit it - The misconfigurations that never get a CVE number - What it would cost the business, ranked into what to fix first Panop answers these inside your environment, for this CVE and every other finding. [Book a demo](https://panop.io/demo)