CVE-2020-9040: Couchbase Server Java SDK

High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days.

Couchbase Server Java SDK before 2.7.1.1 allows a potential attacker to forge an SSL certificate and pose as the intended peer. An attacker can leverage this flaw by crafting a cryptographically valid certificate that will be accepted by Java SDK's Netty component due to missing hostname verification.

Affected products

• Couchbase Couchbase Server Java SDK: from 1.7.1, before 2.7.1.1 (fixed in 2.7.1.1)

Published 2020-06-08. Last modified 2026-06-17.