CVE-2026-84694
Coolify before 4.2.0 Remote Code Execution via Environment Variable Key
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-78 |
| Vendor | coollabsio |
| Product | coolify |
| Published | Sep 2, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
coollabsio / coolify
0 < 4.2.0
References
github.com: https://github.com/coollabsio/coolify github.com: https://github.com/coollabsio/coolify/commit/b50839d4515b115b7ded5db609471440249995da github.com: https://github.com/coollabsio/coolify/blob/v4.1.2/app/Support/ValidationPatterns.php github.com: https://github.com/coollabsio/coolify/blob/v4.1.2/app/Policies/ApplicationPolicy.php github.com: https://github.com/coollabsio/coolify/releases/tag/v4.2.0 vulncheck.com: https://www.vulncheck.com/advisories/coolify-before-4.2.0-remote-code-execution-via-environment-variable-key
Credits
Jaime Ramírez