CVE-2021-27924: Couchbase Server

Medium severity, CVSS 5.9. EPSS: 0.5% chance of exploitation in the next 30 days.

An issue was discovered in Couchbase Server 6.x through 6.6.1. The Couchbase Server UI is insecurely logging session cookies in the logs. This allows for the impersonation of a user if the log files are obtained by an attacker before a session cookie expires.

Affected products

• Couchbase Couchbase Server: from 6.0.0, before 6.6.2 (fixed in 6.6.2)

Published 2021-05-19. Last modified 2026-06-17.