CVE-2021-37842: Couchbase Server

High severity, CVSS 7.5. EPSS: 0.6% chance of exploitation in the next 30 days.

metakv in Couchbase Server 7.0.0 uses Cleartext for Storage of Sensitive Information. Remote Cluster XDCR credentials can get leaked in debug logs. Config key tombstone purging was added in Couchbase Server 7.0.0. This issue happens when a config key, which is being logged, has a tombstone purger time-stamp attached to it.

Affected products

• Couchbase Couchbase Server: version 7.0.0 only; version 7.0.1 only

Published 2021-11-02. Last modified 2026-06-17.