CVE-2026-34047 Coolify: WebSocket Endpoint Access Control Flaw Leading to Remote Code Execution
Authenticated users can bypass authorization checks on WebSocket terminal routes to execute commands on unauthorized resources.
- 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-2026-34047?
CVE-2026-34047 is a critical missing authorization 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.471, terminal WebSocket bootstrap routes did not enforce the expected authorization middleware, allowing an authenticated user to access terminal functionality for resources outside the authorized scope and potentially execute commands. This issue is fixed in version 4.0.0-beta.471.
Weakness: CWE-863
Which versions are affected by CVE-2026-34047?
How do I fix CVE-2026-34047?
No fix has been published for CVE-2026-34047 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-34047 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-34047 exists.
Sources
Also known as GHSA-652w-qv22-2r7c.