What’s Vulnerable › Vulnerabilities

CVE-2026-27955: Coolify: Command Injection via Single-Quote Breakout in `executeInDocker()`

• Severity: medium (CVSS 6.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-30 · updated 2026-10-25
• Weakness: CWE-78

Description

Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.464, the executeInDocker() helper wraps commands in bash -c '{$command}' without escaping single quotes. User-controlled docker_compose_custom_build_command and docker_compose_custom_start_command fields are interpolated directly, allowing a single quote to break out of the bash -c argument and execute commands on the managed server host (outside the intended Docker container context). This vulnerability is fixed in 4.0.0-beta.464.

Affected products

• coollabsio coolify: before 4.0.0-beta.464

References

• https://github.com/coollabsio/coolify/security/advisories/GHSA-6h8g-wpxp-cq98
• https://github.com/coollabsio/coolify/security/advisories/GHSA-6h8g-wpxp-cq98

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