CVE-2026-3066
📋 TL;DR
This CVE describes a command injection vulnerability in HummerRisk's Cloud Compliance Scanning component. Attackers can execute arbitrary commands on affected systems by manipulating the fixedCommand function. Organizations running HummerRisk versions up to 1.5.0 are vulnerable to remote exploitation.
💻 Affected Systems
- HummerRisk
📦 What is this software?
Hummerrisk by Hummerrisk
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise allowing attackers to execute arbitrary commands with the privileges of the HummerRisk process, potentially leading to data theft, lateral movement, or complete system takeover.
Likely Case
Unauthorized command execution leading to data exfiltration, installation of backdoors, or disruption of cloud compliance scanning operations.
If Mitigated
Limited impact if proper network segmentation, least privilege principles, and input validation are implemented, though the vulnerability remains exploitable.
🎯 Exploit Status
The exploit has been published and the vulnerability is remotely exploitable without authentication, making it attractive to attackers.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available - vendor did not respond to disclosure
Restart Required: Yes
Instructions:
No official patch available. Consider upgrading to any version above 1.5.0 if released by the vendor, or implement workarounds.
🔧 Temporary Workarounds
Network Isolation
linuxRestrict network access to HummerRisk instances to only trusted sources
iptables -A INPUT -p tcp --dport [HummerRisk_port] -s [trusted_ip] -j ACCEPT
iptables -A INPUT -p tcp --dport [HummerRisk_port] -j DROP
Process Sandboxing
linuxRun HummerRisk with minimal privileges using containerization or dedicated user accounts
docker run --read-only --cap-drop=ALL -u nobody hummerrisk:tag
🧯 If You Can't Patch
- Implement strict network segmentation to isolate HummerRisk instances from critical systems
- Deploy web application firewalls (WAF) with command injection detection rules
🔍 How to Verify
Check if Vulnerable:
Check the HummerRisk version. If it's 1.5.0 or earlier, the system is vulnerable.Check Version:
Check the application interface or configuration files for version information, or run: grep -r "version" /path/to/hummerrisk/config/Verify Fix Applied:
Verify that the version is above 1.5.0 or that workarounds are properly implemented.📡 Detection & Monitoring
Log Indicators:
- Unusual command execution patterns in system logs
- Unexpected processes spawned by the HummerRisk user
- Failed command injection attempts in application logs
Network Indicators:
- Unusual outbound connections from HummerRisk instances
- Traffic to known malicious IPs or domains
SIEM Query:
source="hummerrisk" AND (process_execution="*cmd*" OR process_execution="*sh*" OR process_execution="*bash*")