CVE-2026-27955
Coolify: Command Injection via Single-Quote Breakout in `executeInDocker()`
Description
Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.464, the executeInDocker() helper wraps commands in bash -c '{$command}' without escaping single quotes. User-controlled docker_compose_custom_build_command and docker_compose_custom_start_command fields are interpolated directly, allowing a single quote to break out of the bash -c argument and execute commands on the managed server host (outside the intended Docker container context). This vulnerability is fixed in 4.0.0-beta.464.
INFO
Published Date :
June 30, 2026, 2:36 p.m.
Last Modified :
June 30, 2026, 2:36 p.m.
Remotely Exploit :
Yes !
Source :
GitHub_M
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update Coolify to version 4.0.0-beta.464 or later.
- Review and sanitize user inputs for commands.
- Avoid direct interpolation of user input into shell commands.
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