CVE-2026-42201

Coolify: OS Command Injection via Database Credential Fields in Docker Compose Service Commands

CVSS 3.3 LOWEPSS 0.2%CWE-78

Vexday Risk Score

8Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 3.3EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

07 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, database credential fields (redis_password, keydb_password, dragonfly_password, clickhouse_admin_user, clickhouse_admin_password, postgres_user, mysql_user) are validated only as 'string' at the API layer, with zero shell-safety checks. These values are then interpolated directly into Docker Compose YAML command: strings without any escaping. This issue is fixed in version 4.0.0-beta.474.

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

Affected products

coollabsio · coolify

References

https://github.com/coollabsio/coolify/commit/bff6d853708f3d7c861279586f107739036e67da https://github.com/coollabsio/coolify/pull/9676 https://github.com/coollabsio/coolify/releases/tag/v4.0.0-beta.474 https://github.com/coollabsio/coolify/security/advisories/GHSA-f35h-g2c2-q36v