PatchTheCVECVE-2025-66209: Coolify is an open-source and self-hostable tool for managing servers, applications, and databases
CVE-2025-66209 is a critical-severity flaw (CVSS 9.9) affecting coolify. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to version 4.0.0-beta.451, an authenticated command injection vulnerability in the Database Backup functionality allows users with application/service management permissions to execute arbitrary commands as root on managed servers. Database names used in backup operations are passed directly to shell commands without sanitization, enabling fu
Why this priority
- Critical severity
- EPSS top 10%: very likely to be exploited
- Public exploit reference
- CISA SSVC: automatable with total technical impact
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.9 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 3.9% (top 10%) |
| CISA exploited list | No |
| Weakness | CWE-78 |
| Published | 2025-12-23 |
| Last modified | 2026-10-19 |
Last updated 2026-10-19 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Exact fixes by distribution
Public exploits and detection
Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.
- GitHub PoC: 0xrakan/coolify-cve-2025-66209-66213 (1 stars)
- Write-up: github.com/coollabsio/coolify/security/advisories/GHSA-vm5p-43qh-7pmq
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2025-66209?
coolify: upgrade to 4.0.0. Exact commands for each OS are on this page.
Is CVE-2025-66209 being exploited?
CVE-2025-66209 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2025-66209 affect?
CVE-2025-66209 affects coolify. Severity is critical (CVSS 9.9). Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to version 4.0.0-beta.451, an authenticated command injection vulnerability in the Database Backup functionality allows users with app
How urgent is CVE-2025-66209?
Priority 65/100. Critical severity; EPSS top 10%: very likely to be exploited; Public exploit reference; CISA SSVC: automatable with total technical impact
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