Executive brief
Coolify, an open-source tool for managing servers and applications, contains a vulnerability that allows authorized users to execute unauthorized commands on the host system. By manipulating application deployment settings, a user with write permissions can gain full control over the server and steal sensitive information like environment variables and credentials. This could lead to a complete compromise of the managed infrastructure and any hosted data.
Technical details
An authenticated remote command injection vulnerability exists in Coolify's application deployment handling. The flaw is rooted in improper neutralization of special elements used in OS commands (CWE-78) within fields such as 'dockerfile_location' and various deployment command inputs. An attacker with application write permissions can inject malicious commands that are executed by the underlying system during the deployment process. This allows for full remote code execution (RCE) and the ability to exfiltrate sensitive environment variables via deployment logs. The vulnerability was addressed in version 4.0.0-beta.469 by improving input validation and sanitization for deployment-related fields.
Affected products
- coollabsio Coolify < 4.0.0-beta.469
Timeline
- 2026-03-18: patched: Fix committed to repository
- 2026-03-20: advisory: Release v4.0.0-beta.469 published
- 2026-07-06: disclosed: CVE published to NVD