CVE-2026-34597: Coolify: Authenticated Host RCE
Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.470, a critical Authenticated Host Remote Code Execution (RCE) vulnerability was discovered in Coolify. The flaw resides in the handling of user-defined build parameters for the Nixpacks build pack. Specifically, the installcommand provided by a user is directly concatenated into a shell command string that is executed on the deployment host during the building phase. An attacker can leverage this to escape the intended build context and execute arbitrary commands with host-level privileges. This vulnerability is fixed in 4.0.0-beta.470.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Coolifyto a version that resolves this vulnerability.Fixed in 4.0.0-beta.470
Event History
Frequently Asked Questions
What is the severity of CVE-2026-34597?
The severity of CVE-2026-34597 is rated as high with a score of 8.8.
How do I fix CVE-2026-34597?
To fix CVE-2026-34597, upgrade Coolify to version 4.0.0-beta.470 or later.
What type of vulnerability is CVE-2026-34597?
CVE-2026-34597 is classified as an Authenticated Remote Code Execution (RCE) vulnerability.
What impact does CVE-2026-34597 have on my system?
CVE-2026-34597 allows an authenticated attacker to execute arbitrary commands on the host system.
Is CVE-2026-34597 specific to a certain version of Coolify?
Yes, CVE-2026-34597 affects Coolify versions prior to 4.0.0-beta.470.