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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.

PUBLISHED Reserved 2026-04-25 | Published 2026-05-04 | Updated 2026-05-06 | Assigner GitHub_M




HIGH: 8.1CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem types

CWE-306: Missing Authentication for Critical Function

CWE-284: Improper Access Control

Product status

= 2.3.5
affected

References

github.com/...inx-ui/security/advisories/GHSA-mxqh-q9h6-v8pq exploit

github.com/...inx-ui/security/advisories/GHSA-mxqh-q9h6-v8pq

cve.org (CVE-2026-42222)

nvd.nist.gov (CVE-2026-42222)

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