CVE-2026-84316

Nginx UI is a web user interface for the Nginx web server. Prior to 2.4.1, config.ValidateConfigDirectives splits configuration by newline and checks only the first directive token on each line even though Nginx permits multiple semicolon-separated directives on one line. An authenticated caller can place a benign directive first and a restricted load_module, js_import, perl, or user root directive later on the same line, or can use an unrestricted include directive to load restricted content. These mechanisms bypass validation on REST, nginx_config_modify, site, and stream write paths; when an executable module is available, the injected configuration can execute code in the Nginx worker context. This issue is fixed in version 2.4.1.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/0xJacky/nginx-ui/commit/23d1934099b05b2a01589b48129dc3d3159d91c2
https://github.com/0xJacky/nginx-ui/releases/tag/v2.4.1
https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-cf23-7qxj-xmhr
https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-cf23-7qxj-xmhr

Configurations

No configuration.

History

13 Oct 2026, 15:17

Type	Values Removed	Values Added
References	~~() https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-cf23-7qxj-xmhr -~~	() https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-cf23-7qxj-xmhr -

12 Oct 2026, 21:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-12 21:17

Updated : 2026-10-13 15:17

NVD link : CVE-2026-84316

Mitre link : CVE-2026-84316

CVE.ORG link : CVE-2026-84316

JSON object : View

Products Affected

No product.

CWE

CWE-20

Improper Input Validation

CWE-184

Incomplete List of Disallowed Inputs

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