CVE-2026-34035: coollabsio Coolify command injection in Log Drain configuration

CVE-2026-34035 · Severity: high · CVSS 8.8 · Published 2026-07-07

Coolify is an open-source platform used to manage and host servers, applications, and databases. A security flaw in the log management component allows an authorized user to execute malicious commands on the underlying server. This could lead to a complete takeover of the hosting infrastructure, unauthorized access to sensitive data, and disruption of all hosted services.

Quick answers

Is CVE-2026-34035 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-34035 being exploited in the wild.
How severe is CVE-2026-34035?
High severity, with a CVSS score of 8.8, published 7 July 2026.
Which products and versions are affected?
coollabsio Coolify < 4.0.0-beta.466.
Is there a fix for CVE-2026-34035?
A patch was published on 2026-03-11: Fixed in version 4.0.0-beta.466 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-34035 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-34035?
Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An OS command injection vulnerability (CWE-78) exists in Coolify's log drain configuration logic within 'app/Actions/Server/StartLogDrain.php' and 'app/Livewire/Server/LogDrains.php'. The application constructs shell commands by interpolating user-provided log drain secrets (such as Axiom API keys) directly into unquoted 'echo' commands. An authenticated attacker with access to server settings can provide a crafted payload containing shell metacharacters (e.g., '$(id)') to achieve Remote Code Execution (RCE) on the host server. The issue has been addressed in version 4.0.0-beta.466 by implementing base64 encoding for environment variables and adding regex validation for input fields.

Affected products

  • coollabsio Coolify < 4.0.0-beta.466

Timeline

  • 2026-03-04: disclosed: Vulnerability discovered by Xyptonize
  • 2026-03-11: patched: Fixed in version 4.0.0-beta.466
  • 2026-07-07: advisory: CVE-2026-34035 published

References

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