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CVE-2021-37842

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-11-02 · updated 2026-06-17
• Weakness: CWE-312

Description

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 Server: 7.0.0, 7.0.1

References

• https://docs.couchbase.com/server/current/release-notes/relnotes.html
• https://www.couchbase.com/alerts
• https://docs.couchbase.com/server/current/release-notes/relnotes.html
• https://www.couchbase.com/alerts

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