CVE-2026-27957: Coolify: Authenticated RCE via command injection in CA certificate management feature
Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.464, an authenticated command injection vulnerability in the CA Certificate management feature allows any authenticated user to execute arbitrary commands as the configured SSH user on the managed server host. As the SSH user typically would have to either be root or part of the docker group for Coolify to function as intended, this provides complete compromise of the managed server and associated docker containers. This vulnerability is fixed in 4.0.0-beta.464.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Coolifyto a version that resolves this vulnerability.Fixed in 4.0.0-beta.464
Event History
Frequently Asked Questions
What is the severity of CVE-2026-27957?
CVE-2026-27957 has a high severity rating of 8.8.
What does CVE-2026-27957 affect?
CVE-2026-27957 affects the Coolify software, specifically its CA certificate management feature.
How can an attacker exploit CVE-2026-27957?
An attacker can exploit CVE-2026-27957 by using command injection to execute arbitrary commands as an authenticated user.
How do I fix CVE-2026-27957?
To fix CVE-2026-27957, upgrade to version 4.0.0-beta.464 or later of Coolify.
Who is impacted by CVE-2026-27957?
Any authenticated user of affected versions of Coolify is at risk from CVE-2026-27957.