CVE-2021-37938: Elastic Kibana

Medium severity, CVSS 4.3. EPSS: 0.7% chance of exploitation in the next 30 days.

It was discovered that on Windows operating systems specifically, Kibana was not validating a user supplied path, which would load .pbf files. Because of this, a malicious user could arbitrarily traverse the Kibana host to load internal files ending in the .pbf extension. Thanks to Dominic Couture for finding this vulnerability.

Affected products

• Elastic Kibana: from 7.9.0, before 7.15.2 (fixed in 7.15.2)

Published 2021-11-18. Last modified 2026-06-17.