GO-2026-5521 Nginx-UI: Unauthenticated first-boot instance claim via POST /api/install allows remote bootstrap takeover in github.com/0xJacky/nginx-ui

Nginx-UI: Unauthenticated first-boot instance claim via POST /api/install allows remote bootstrap takeover in github.com/0xJacky/nginx-ui...

CVE-2026-42222 nginx-ui: Unauthenticated first-boot instance claim via POST /api/install allows remote bootstrap takeover

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...

PT-2026-36921

Name of the Vulnerable Software and Affected Versions Nginx UI versions 2.0.0 through 2.3.7 Description An unauthenticated network attacker can claim the initial administrator account on a fresh instance during the first-run setup window. The public endpoint "/api/install" is accessible without...