CVE-2026-34034 Coolify: Host RCE via Sentinel token injection
An authenticated user can inject shell commands via the Sentinel token setting to execute arbitrary code 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-2026-34034?
CVE-2026-34034 is a high-severity command injection vulnerability in coollabsio coolify, published on 7 Jul 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.466, the sentinel_token setting is used in shell commands without sufficient validation, allowing an authenticated user with access to server Sentinel settings to inject shell syntax and execute commands on the host when Sentinel is restarted. This issue is fixed in version 4.0.0-beta.466.
Weakness: CWE-78
Which versions are affected by CVE-2026-34034?
How do I fix CVE-2026-34034?
No fix has been published for CVE-2026-34034 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-2026-34034 being exploited?
There is no known exploitation of CVE-2026-34034 in the wild and no public exploit code.
Sources
Also known as GHSA-rpr8-p7jc-x844.