CVE-2026-42148

Coolify: Command Injection via Unescaped Version String in Docker Build

CVSS 3.8 LOWEPSS 0.1%CWE-78

Vexday Risk Score

8Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 3.8EPSS 0.1%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

06 Jul 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.474, the buildHelperImage method in app/Livewire/Settings/Index.php constructs a Docker build command using the dev_helper_version field without shell escaping, allowing an attacker who can set the helper version and trigger the helper image build in a development environment to execute arbitrary commands on the server. This issue is fixed in version 4.0.0-beta.474.

CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:L

Affected products

coollabsio · coolify

References

https://github.com/coollabsio/coolify/commit/dc9322b11f5f4ab96e56af0df7d4f877e96e5e4c https://github.com/coollabsio/coolify/pull/9670 https://github.com/coollabsio/coolify/security/advisories/GHSA-x9qh-w4c4-54f9