CVE-2026-34034: Coolify: Host RCE via Sentinel token injection
Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.466, the sentineltoken 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.
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.466
Event History
Frequently Asked Questions
What is the severity of CVE-2026-34034?
The severity of CVE-2026-34034 is high, rated at 8.8 on the CVSS scale.
What does CVE-2026-34034 exploit?
CVE-2026-34034 exploits a vulnerability in Coolify allowing unauthorized Remote Code Execution via Sentinel token injection.
How do I fix CVE-2026-34034?
To fix CVE-2026-34034, upgrade to Coolify version 4.0.0-beta.466 or later.
Who is affected by CVE-2026-34034?
Authenticated users with access to server Sentinel settings in versions prior to 4.0.0-beta.466 are affected by CVE-2026-34034.
What type of vulnerability is CVE-2026-34034?
CVE-2026-34034 is classified as an OS Command Injection vulnerability.