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How the mentioned CVE works:
The vulnerability exists within the `execute_command` function of terminal-controller-mcp version 0.1.7. The function improperly concatenates user-controlled input directly into a shell command without adequate sanitization or neutralization. An attacker can craft a malicious input string containing shell metacharacters (e.g., semicolons, backticks, or ampersands). When this crafted input is processed by the vulnerable function, the embedded shell commands are executed with the same privileges as the application process. This allows for arbitrary command execution on the host system, potentially leading to full compromise, data exfiltration, or further lateral movement within the affected environment. The lack of input validation or context-aware escaping is the root cause.
DailyCVE Form:
Platform: Node.js package
Version: 0.1.7
Vulnerability: Command injection
Severity: Critical
Date: Jan 7, 2026
Prediction: Patch by Jan 30, 2026
What Undercode Say:
Analytics:
npm ls terminal-controller-mcp grep -r "execute_command" . curl -s https://registry.npmjs.org/terminal-controller-mcp | jq .time
How Exploit:
curl -X POST http://target/api -d 'cmd=legit; cat /etc/passwd' Input: "legit; $(rm -rf /)" Payload: `sleep 10` & whoami
Protection from this CVE:
Update package immediately
Implement input validation
Use execFile/child_process.spawn
Apply principle of least privilege
Impact:
Arbitrary command execution
Full system compromise
Data breach potential
RCE on server
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Sources:
Reported By: github.com
Extra Source Hub:
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