CVE-2020-9039: Couchbase Server

Critical severity, CVSS 9.8. EPSS: 3.9% chance of exploitation in the next 30 days.

Couchbase Server 4.0.0, 4.1.0, 4.1.1, 4.5.0, 4.5.1, 4.6.0 through 4.6.5, 5.0.0, 5.1.1, 5.5.0 and 5.5.1 have Insecure Permissions for the projector and indexer REST endpoints (they allow unauthenticated access).The /settings REST endpoint exposed by the projector process is an endpoint that administrators can use for various tasks such as updating configuration and collecting performance profiles. The endpoint was unauthenticated and has been updated to only allow authenticated users to access these administrative APIs.

Affected products

• Couchbase Couchbase Server: from 4.6.0, up to and including 4.6.5; version 4.0.0 only; version 4.1.0 only; version 4.1.1 only; version 4.5.0 only; version 4.5.1 only; …

Published 2020-02-22. Last modified 2026-06-17.