CVE-2026-42153: Coollabsio Coolify

High severity, CVSS 8.8. EPSS: 0.7% chance of exploitation in the next 30 days.

Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.474, PostgreSQL healthcheck command generation used attacker-controlled database settings (postgres_user and postgres_db) in shell-form commands, allowing an authenticated user to inject commands executed in the database container. This issue is fixed in version 4.0.0-beta.474.

Affected products

• Coollabsio Coolify: before 4.0.0-beta.474 (fixed in 4.0.0-beta.474)

Published 2026-07-06. Last modified 2026-07-07.