CVE-2026-84694
Medium
Elevated severity or exploit probability.
CVSS base
8.8
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
0.8%
56.2th percentile
CISA KEV
Not listed
Weakness / dates
CWE-78
Published 2026-09-02 · modified 2026-09-10
Description
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.
References
- https://github.com/coollabsio/coolify
- https://github.com/coollabsio/coolify/blob/v4.1.2/app/Policies/ApplicationPolicy.php
- https://github.com/coollabsio/coolify/blob/v4.1.2/app/Support/ValidationPatterns.php
- https://github.com/coollabsio/coolify/commit/b50839d4515b115b7ded5db609471440249995da
- 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