CVE-2026-42204

Coolify: Authenticated RCE via SHELL_SAFE_COMMAND_PATTERN regression → host root

CVSS 8.8 HIGHEPSS 0.4%CWE-78

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 8.8EPSS 0.4%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. 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.

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

Affected products

coollabsio · coolify

References

https://github.com/coollabsio/coolify/commit/e1aac50b745cf499e710b7e35cd2a9d6a1538dd9 https://github.com/coollabsio/coolify/pull/9684 https://github.com/coollabsio/coolify/releases/tag/v4.0.0-beta.474 https://github.com/coollabsio/coolify/security/advisories/GHSA-chg4-63hm-xv9x