Remote Code Execution Vulnerability in Coolify by Coollabs
CVE-2026-84694

8.7HIGH

Key Information:

Vendor

Coollabsio

Status
Coolify
Vendor
CVE Published:
2 September 2026

What is CVE-2026-84694?

Coolify, prior to version 4.2.0, contains a vulnerability that allows authenticated attackers to exploit improper escaping of environment variable key names when executing Docker commands via SSH on managed servers. By injecting shell metacharacters into environment variable keys, attackers can run arbitrary commands on the host server, potentially leading to severe security breaches. Users are advised to upgrade to the latest version to mitigate this risk.

Affected Version(s)

coolify 0 < 4.2.0

coolify 4.2.0

References

https://github.com/coollabsio/coolify
product
https://github.com/coollabsio/coolify/commit/b50839d4515b...
patch
https://github.com/coollabsio/coolify/blob/v4.1.2/app/Sup...
technical-description

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Jaime RamĂ­rez
.