What’s Vulnerable › Vulnerabilities

CVE-2019-11467

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-09-10 · updated 2026-06-17
• Weakness: CWE-119

Description

In Couchbase Server 4.6.3 and 5.5.0, secondary indexing encodes the entries to be indexed using collatejson. When index entries contain certain characters like \t, <, >, it caused buffer overrun as encoded string would be much larger than accounted for, causing indexer service to crash and restart. This has been remedied in versions 5.1.2 and 5.5.2 to ensure buffer always grows as needed for any input.

Affected products

• Couchbase Server: 4.6.3, 5.5.0

References

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

Get alerted when CVE-2019-11467 or the next vulnerability affects your stack