Vulnerability 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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/coollabsio/coolify/commit/e1aac50b745cf499e710b7e35cd2a9d6a15
- 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
- https://github.com/coollabsio/coolify/security/advisories/GHSA-chg4-63hm-xv9x
FAQ
What is CVE-2026-42204?
CVE-2026-42204 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 amper...
How severe is CVE-2026-42204?
CVE-2026-42204 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-42204?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.