CVE-2026-84694 Coolify before 4.2.0 Remote Code Execution via Environment Variable Key
Authenticated attackers can inject shell metacharacters into environment variable keys to execute arbitrary commands on the host server.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-84694?
CVE-2026-84694 is a high-severity command injection vulnerability in coollabsio coolify, published on 2 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-78
Which versions are affected by CVE-2026-84694?
How do I fix CVE-2026-84694?
No fix has been published for CVE-2026-84694 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-84694 being exploited?
There is no known exploitation of CVE-2026-84694 in the wild and no public exploit code.
Sources
Also known as GHSA-xf4v-vq77-2rgv.