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CVE-2026-42221 nginx-ui: Unauthenticated First-Run Installer Allows Remote Initial Admin Claim

🗓️ 04 May 2026 20:09:37Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 62 Views

Unauthenticated first-run installer lets remote admin takeover on fresh nginx-ui before patch 2.3.8.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-42221
4 May 202620:09
–attackerkb
bdu_fstec
BDU FSTEC
Nginx UI Data Modification
6 May 202600:00
–bdu_fstec
circl
Circl
CVE-2026-42221
4 May 202621:35
–circl
cnnvd
CNNVD
Nginx UI 访问控制错误漏洞
4 May 202600:00
–cnnvd
cve
CVE
CVE-2026-42221
4 May 202620:09
–cve
euvd
EUVD
EUVD-2026-27135
6 May 202616:59
–euvd
github
Github Security Blog
Nginx-UI: Unauthenticated First-Run Installer Allows Remote Initial Admin Claim
6 May 202616:59
–github
gitlab
GitLab Advisory Database
Nginx-UI: Unauthenticated First-Run Installer Allows Remote Initial Admin Claim
6 May 202600:00
–gitlab
kitploit
Kitploit
nginx-ui-CVE-2026-42221-CVE-2026-42238-
16 Oct 202616:03
–kitploit
mend
Mend
CVE-2026-42221
4 May 202620:09
–mend
Rows per page
[
  {
    "vendor": "0xJacky",
    "product": "nginx-ui",
    "versions": [
      {
        "version": ">= 2.0.0, < 2.3.8",
        "status": "affected"
      }
    ]
  }
]

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