CVE-2026-34597 Coolify: Authenticated Host RCE
Authenticated attackers can execute arbitrary commands on the host via Nixpacks build parameters, requiring an upgrade to Coolify.
- 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-2026-34597?
CVE-2026-34597 is a high-severity command injection vulnerability in coollabsio coolify, published on 29 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.470, a critical Authenticated Host Remote Code Execution (RCE) vulnerability was discovered in Coolify. The flaw resides in the handling of user-defined build parameters for the Nixpacks build pack. Specifically, the install_command provided by a user is directly concatenated into a shell command string that is executed on the deployment host during the building phase. An attacker can leverage this to escape the intended build context and execute arbitrary commands with host-level privileges. This vulnerability is fixed in 4.0.0-beta.470.
Weakness: CWE-78
Which versions are affected by CVE-2026-34597?
How do I fix CVE-2026-34597?
No fix has been published for CVE-2026-34597 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-2026-34597 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-34597 exists.
Sources
Also known as GHSA-9pp4-wcmj-rq73.