CVE-2021-27925

Severity: medium (CVSS 4.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-05-19 · updated 2026-06-17
Weakness: CWE-362

Description

An issue was discovered in Couchbase Server 6.5.x and 6.6.x through 6.6.1. When using the View Engine and Auditing is enabled, a crash condition can (depending on a race condition) cause an internal user with administrator privileges, @ns_server, to have its credentials leaked in cleartext in the ns_server.info.log file.

Affected products

Couchbase Server: from 6.5.0 before 6.6.2 — fixed in 6.6.2

How to fix

Upgrade to a fixed version: Couchbase Server 6.6.2. Check the vendor advisory for mitigations.

References

https://www.couchbase.com/downloads
https://www.couchbase.com/resources/security#SecurityAlerts
https://www.couchbase.com/downloads
https://www.couchbase.com/resources/security#SecurityAlerts

Get alerted when CVE-2021-27925 or the next vulnerability affects your stack