Description
Nginx UI is a web user interface for the Nginx web server. In version 2.3.5, an unauthenticated bootstrap takeover exists in nginx-ui during the initial installation window exposed by POST /api/install. At time of publication no public patches are available.
Published: 2026-05-04
Score: 8.1 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-mxqh-q9h6-v8pq Nginx-UI: Unauthenticated first-boot instance claim via POST /api/install allows remote bootstrap takeover
History

Wed, 06 May 2026 18:00:00 +0000

Type Values Removed Values Added
First Time appeared Nginxui
Nginxui nginx Ui
CPEs cpe:2.3:a:nginxui:nginx_ui:2.3.5:*:*:*:*:*:*:*
Vendors & Products Nginxui
Nginxui nginx Ui

Wed, 06 May 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 04 May 2026 21:45:00 +0000

Type Values Removed Values Added
First Time appeared 0xjacky
0xjacky nginx-ui
Vendors & Products 0xjacky
0xjacky nginx-ui

Mon, 04 May 2026 20:30:00 +0000

Type Values Removed Values Added
Description Nginx UI is a web user interface for the Nginx web server. In version 2.3.5, an unauthenticated bootstrap takeover exists in nginx-ui during the initial installation window exposed by POST /api/install. At time of publication no public patches are available.
Title nginx-ui: Unauthenticated first-boot instance claim via POST /api/install allows remote bootstrap takeover
Weaknesses CWE-284
CWE-306
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Subscriptions

0xjacky Nginx-ui
Nginxui Nginx Ui
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-05-06T13:58:55.214Z

Reserved: 2026-04-25T05:37:12.116Z

Link: CVE-2026-42222

cve-icon Vulnrichment

Updated: 2026-05-06T13:58:28.402Z

cve-icon NVD

Status : Analyzed

Published: 2026-05-04T21:16:32.173

Modified: 2026-05-06T17:47:59.360

Link: CVE-2026-42222

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-04T21:30:09Z

Weaknesses