CVE-2025-34159

High

Description

Coolify versions prior to v4.0.0-beta.420.6 are vulnerable to a remote code execution vulnerability in the application deployment workflow. The platform allows authenticated users, with low-level member privileges, to inject arbitrary Docker Compose directives during project creation. By crafting a malicious service definition that mounts the host root filesystem, an attacker can gain full root access to the underlying server.

SeverityHigh
CVSS8.8
Exploit probability—
ProductCoollabs Coolify
PublishedAug 27, 2025
First seenAug 27, 2025

How to fix

Update
  • coollabs coolify4.0.0 or later

Affected products

ProductAffected versionsFixed in
coollabs coolifyv < 4.0.0, 4.0.04.0.0

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.