ZoomEye finds 9,045 internet-reachable Couchbase instances

A ZoomEye fingerprint query for the Couchbase application signature returned 9,045 services reachable from the public internet, collected on 24 September 2026. For comparison, the same window showed PostgreSQL at 3,375,720, MariaDB at 5,079,898 and Microsoft SQL Server at 2,070,628. Exposed surfaces can include the admin web console and data/query service ports.

• ZoomEye counted 9,045 Couchbase services reachable from the public internet
• PostgreSQL: 3,375,720; MariaDB: 5,079,898; SQL Server: 2,070,628
• An exposed console allows bucket, user and role management
• Older Couchbase releases allowed passwordless bucket access