What is CVE-2026-84694?

CVE-2026-84694 is a high-severity vulnerability in Coollabsio Coolify, classified under OS Command Injection. CVSS score: 8.8/10. Published 2026-09-02.

How severe is CVE-2026-84694?

High severity. CVSS v3 base score is 8.8 out of 10.

RCE in Coollabsio Coolify

CVE-2026-84694

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.

Vulnerability class: Command Injection (OS Command Injection)

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Coollabsio Coolify

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

disclosure@vulncheck.com (product)
disclosure@vulncheck.com (technical-description)
disclosure@vulncheck.com (technical-description)
disclosure@vulncheck.com (patch)
disclosure@vulncheck.com (release-notes)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-84694?: CVE-2026-84694 is a high-severity vulnerability in Coollabsio Coolify, classified under OS Command Injection. CVSS score: 8.8/10. Published 2026-09-02.
How severe is CVE-2026-84694?: High severity. CVSS v3 base score is 8.8 out of 10.