CVE-2026-84319High· 8.3▾ Twilight

Nginx UI is a web user interface for the Nginx web server

▾ Twilight zone — High severity, or a signal on a lesser flaw

Depth score46/ 100 · Moderate

impact 45.7 · likelihood 0.1 · exploitation 0

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Proof of concept

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Published

Oct 12, 2026

Updated

Oct 13, 2026

CVSS

8.3

Vendor

0xJacky

Product

nginx-ui

CWE

CWE-693

Depth score

46 · Moderate

EPSS

0.28% · p20

Platforms

—

Source

NVD

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H

CISA SSVC

decided 2026-10-13

Exploitation: none
Automatable: no
Technical impact: partial

Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.

EPSS history

Exploit-prediction probability, daily snapshots since Oct 13.

0.3% → 0.3%

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

3 events · 1 day

Oct 12, 2026Published
Disclosed via NVD
Oct 13, 2026Record revised
Last analysed / modified upstream
Oct 13, 2026EPSS first tracked
0.3%

0xJacky CWE-693 #nvd #cve.org #ghsa #go #osv

Affected

nginx-ui < 2.4.1

Patched in

github.com/0xJacky/Nginx-UI 1.9.10-0.20260703131214-23d1934099b0

Full technical detail▾

Overview

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.

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

Package advisory (CVE-2026-84319)

Affected packages:

github.com/0xJacky/Nginx-UI < 1.9.10-0.20260703131214-23d1934099b0

Patched in:

github.com/0xJacky/Nginx-UI 1.9.10-0.20260703131214-23d1934099b0

Source: https://github.com/advisories/GHSA-5r62-gj48-897x

References

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#nvd#cve.org#ghsa#go#osv

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