CVE-2020-29578: Matomo Piwik FPM-Alpine Docker Image

Critical severity, CVSS 9.8. EPSS: 2.3% chance of exploitation in the next 30 days.

The official piwik Docker images before fpm-alpine (Alpine specific) contain a blank password for a root user. Systems using the Piwik Docker container deployed by affected versions of the Docker image may allow an remote attacker to achieve root access.

Affected products

• Matomo Piwik FPM-Alpine Docker Image: version 3 only; version 3.5 only; version 3.5.1 only; version 3.6 only; version 3.6.0 only

Published 2020-12-08. Last modified 2026-06-17.