CVE-2026-84694

Summary

Coolify before 4.2.0 fails to properly escape environment variable key names in Docker commands executed over SSH on managed servers. Authenticated attackers can inject shell metacharacters into environment variable keys to execute arbitrary commands on the server host outside containers.

Affected Software

Weaknesses

• CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: total

References

• https://github.com/coollabsio/coolify
• https://github.com/coollabsio/coolify/commit/b50839d4515b115b7ded5db609471440249995da
• https://github.com/coollabsio/coolify/blob/v4.1.2/app/Support/ValidationPatterns.php
• https://github.com/coollabsio/coolify/blob/v4.1.2/app/Policies/ApplicationPolicy.php
• https://github.com/coollabsio/coolify/releases/tag/v4.2.0
• https://www.vulncheck.com/advisories/coolify-before-4.2.0-remote-code-execution-via-environment-variable-key

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