CVE-2026-34038

What is known

Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.469, an authenticated remote command injection vulnerability in application deployment handling allows users with application write permissions to achieve remote code execution and exfiltrate sensitive environment variables through deployment logs via fields such as dockerfile_location and deployment commands. This issue is fixed in version 4.0.0-beta.469.

Business impact

Successful exploitation of CVE-2026-34038, a critical vulnerability (CVSS 9.9) affecting the affected product, may affect the confidentiality, integrity or availability of the vulnerable environment. The exact impact depends on the installed version, exposed interfaces and deployment configuration.

Recommended administrator action

Confirm whether the affected product is present and compare installed versions with the vendor advisory and NVD record. Apply the vendor patch or documented mitigation; until remediation is complete, reduce exposure of affected interfaces, review relevant logs and monitor for indicators of exploitation. DataHouse can support version verification, managed patching, network exposure reduction, log review and backup validation for dedicated, cloud and colocated environments.

Sources

• NVD
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