CVE-2026-2544
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary operating system commands on systems running vulnerable versions of yued-fe LuLu UI. The flaw exists in the child_process.exec function in run.js, enabling command injection attacks. Any application using LuLu UI up to version 3.0.0 is potentially affected.
💻 Affected Systems
- yued-fe LuLu UI
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise allowing attacker to execute arbitrary commands with the privileges of the application process, potentially leading to data theft, ransomware deployment, or complete system takeover.
Likely Case
Remote code execution allowing attackers to install malware, create backdoors, or pivot to other systems on the network.
If Mitigated
Limited impact if proper input validation and command sanitization are implemented, though some risk remains due to the fundamental nature of the vulnerability.
🎯 Exploit Status
Command injection vulnerabilities are typically easy to exploit once the attack vector is identified. The vulnerability is remotely exploitable without authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: Yes
Instructions:
1. Check if you're using LuLu UI version 3.0.0 or earlier. 2. Monitor for vendor updates. 3. Consider removing or replacing LuLu UI if no patch becomes available. 4. Apply workarounds in the meantime.
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement strict input validation and sanitize all user inputs before passing to child_process.exec
// Example: Use execFile with explicit arguments instead of exec with shell
const { execFile } = require('child_process');
const args = [sanitizedUserInput];
execFile('command', args, (error, stdout, stderr) => { /* handle */ });
Network Segmentation
linuxIsolate affected systems from critical networks and limit outbound connections
# Example firewall rule to limit outbound connections
# iptables -A OUTPUT -p tcp --dport 80 -j DROP
# iptables -A OUTPUT -p tcp --dport 443 -j DROP
🧯 If You Can't Patch
- Implement strict network segmentation to isolate affected systems
- Deploy application-level firewalls with command injection detection rules
🔍 How to Verify
Check if Vulnerable:
Check package.json for LuLu UI version 3.0.0 or earlier, and examine code for use of child_process.exec in run.js with user-controlled input.Check Version:
grep -r "lulu-ui" package.json && grep -r "version" package.jsonVerify Fix Applied:
Verify that child_process.exec is no longer used with unsanitized user input, or that proper input validation and sanitization are implemented.📡 Detection & Monitoring
Log Indicators:
- Unusual child process executions from Node.js applications
- Suspicious command-line arguments in process creation logs
- Multiple failed command execution attempts
Network Indicators:
- Unexpected outbound connections from Node.js processes
- Command and control traffic patterns
SIEM Query:
source="application.logs" AND (process_name="node" OR process_name="node.exe") AND (event="child_process.exec" OR event="command_injection")