CVE-2025-66211
8.8 HIGH
📋 TL;DR
Coolify versions before 4.0.0-beta.451 contain an authenticated command injection vulnerability in PostgreSQL initialization script filename handling. Users with application/service management permissions can execute arbitrary commands as root on managed servers, leading to full remote code execution. This affects all Coolify deployments with vulnerable versions.
💻 Affected Systems
Products:
- Coolify
Versions: All versions prior to 4.0.0-beta.451
Operating Systems: Linux
Default Config Vulnerable:
⚠️ Yes
Notes: Requires authenticated user with application/service management permissions. PostgreSQL service must be configured.
📦 What is this software?
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⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of managed servers with root-level access, allowing data theft, lateral movement, and persistent backdoor installation.
Likely Case
Privilege escalation leading to unauthorized access to sensitive data and disruption of managed services.
If Mitigated
Limited impact if proper network segmentation and least privilege access controls are implemented.
🌐 Internet-Facing: HIGH
🏢 Internal Only: HIGH
🎯 Exploit Status
Public PoC:
⚠️ Yes
Weaponized:
LIKELY
Unauthenticated Exploit:
✅ No
Complexity:
LOW
Exploit details available in public GitHub repository. Requires authenticated access but trivial to execute once authenticated.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 4.0.0-beta.451
Vendor Advisory: https://github.com/coollabsio/coolify/security/advisories/GHSA-24mp-fc9q-c884
Restart Required: Yes
Instructions:
1. Backup your Coolify configuration and data. 2. Update to version 4.0.0-beta.451 or later using the official update mechanism. 3. Restart the Coolify service. 4. Verify the update was successful.
🔧 Temporary Workarounds
Restrict User Permissions
allTemporarily remove application/service management permissions from non-essential users
Network Segmentation
allIsolate Coolify management interface from production servers
🧯 If You Can't Patch
- Implement strict network segmentation to isolate Coolify from critical infrastructure
- Apply principle of least privilege - remove application/service management permissions from all non-essential users
🔍 How to Verify
Check if Vulnerable:
Check Coolify version via web interface or configuration files. If version is below 4.0.0-beta.451, system is vulnerable.Check Version:
Check Coolify web interface dashboard or configuration files for version informationVerify Fix Applied:
Verify version is 4.0.0-beta.451 or higher and test PostgreSQL initialization script functionality.📡 Detection & Monitoring
Log Indicators:
- Unusual shell commands executed by Coolify process
- Unexpected PostgreSQL initialization activities
- Root-level command execution from Coolify user
Network Indicators:
- Unusual outbound connections from Coolify server
- SSH/RDP connections originating from Coolify to managed servers
SIEM Query:
process_name:"coolify" AND (command_line:*sh* OR command_line:*bash* OR command_line:*root*)