{
  "cvss": 0.0,
  "datePublished": "2026-03-19T00:00:00Z",
  "dateUpdated": "2026-03-19T00:00:00Z",
  "description": "Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.3, the /api/backup endpoint is accessible without authentication and discloses the encryption keys required to decrypt the backup in the X-Backup-Security response header. This allows an unauthenticated attacker to download a full system backup containing sensitive data (user credentials, session tokens, SSL private keys, Nginx configurations) and decrypt it immediately. This issue has been patched in version 2.3.3.",
  "dueDate": "",
  "id": "CVE-2026-27944",
  "kev_catalogs": [
    "vulncheck"
  ],
  "knownRansomwareCampaignUse": "Unknown",
  "product": "nginx_ui",
  "requiredAction": "Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.",
  "severity": "HIGH",
  "source": "vulncheck_kev",
  "title": "nginxui nginx_ui Missing Authentication for Critical Functionality",
  "vendor": "nginxui"
}