CVE-2025-66209 Coolify Vulnerable to Authenticated Remote Code Execution via Command Injection in Database Backup

Critical 10.0 Published 23 Dec 2025 Updated 17 Mar 2026

Authenticated users can execute arbitrary root commands via unsanitized database names in backup operations, requiring an upgrade to Coolify.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-66209?

CVE-2025-66209 is a critical command injection vulnerability in coollabsio coolify, published on 23 Dec 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official 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.

Weakness: CWE-78

Which versions are affected by CVE-2025-66209?

It affects 1 product.

Products include Coollabs Coolify.

How do I fix CVE-2025-66209?

No fix has been published for CVE-2025-66209 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2025-66209 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-66209 exists.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-vm5p-43qh-7pmq.