CVE-2025-66209
Critical
Description
Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to version 4.0.0-beta.451, an authenticated command injection vulnerability in the Database Backup functionality allows users with application/service management permissions to execute arbitrary commands as root on managed servers. Database names used in backup operations are passed directly to shell commands without sanitization, enabling full remote code execution. Version 4.0.0-beta.451 fixes the issue.
SeverityCritical
CVSS9.9
Exploit probability—
ProductCoollabs Coolify
PublishedDec 23, 2025
First seenDec 23, 2025
Weakness typeCWE-78OS command injection
How to fix
Update
- coollabs coolify4.0.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| coollabs coolify | v < 4.0.0, 4.0.0 | 4.0.0 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.