coollabsio Coolify up to 4.0.0-beta.473 Settings Index.php buildHelperImage dev_helper_version os command injection

Summaryinfo

A vulnerability marked as very critical has been reported in coollabsio Coolify up to 4.0.0-beta.473. This vulnerability affects the function buildHelperImage of the file app/Livewire/Settings/Index.php of the component Settings Handler. This manipulation of the argument dev_helper_version causes os command injection. This vulnerability is registered as CVE-2026-42148. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability has been found in coollabsio Coolify up to 4.0.0-beta.473 and classified as very critical. Affected by this vulnerability is the function buildHelperImage of the file app/Livewire/Settings/Index.php of the component Settings Handler. The manipulation of the argument dev_helper_version with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.474, the buildHelperImage method in app/Livewire/Settings/Index.php constructs a Docker build command using the dev_helper_version field without shell escaping, allowing an attacker who can set the helper version and trigger the helper image build in a development environment to execute arbitrary commands on the server. This issue is fixed in version 4.0.0-beta.474.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-42148 since 04/24/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation requires an enhanced level of successful authentication. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/07/2026). The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

By approaching the search of inurl:app/Livewire/Settings/Index.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 4.0.0-beta.474 eliminates this vulnerability.

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Productinfo

Vendor

• coollabsio

Name

• Coolify

Version

• 4.0.0-beta.473

Website

• Product: https://github.com/coollabsio/coolify/

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