Is CVE-2026-42204 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-42204?

CVE-2026-42204 has a CVSS v3 severity of HIGH (8.8).

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CVE-2026-42204

Description

Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. From 4.0.0-beta.471 through 4.0.0-beta.473, a regression in SHELL_SAFE_COMMAND_PATTERN allowed ampersands in custom Docker Compose build, start, and pre/post-deployment command fields, allowing an authenticated team member to inject shell commands that execute on the host. This issue is fixed in version 4.0.0-beta.474.