CVE-2026-42222

Critical

Open

TLP:CLEAR

NVD CVE.org

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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.

Details

CVSS Score: 9.8
EPSS Score ⓘ: 0.34%

26.8th percentile
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Confidence: 90%
Published: May 4, 2026

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