Attack Chain

1. The attacker identifies a vulnerable instance of Toowiredd chatgpt-mcp-server running version 0.1.0 or earlier.
2. The attacker crafts a malicious HTTP request targeting the MCP/HTTP component.
3. The request exploits the command injection vulnerability in src/services/docker.service.ts.
4. The server-side code improperly sanitizes input, allowing the attacker to inject OS commands.
5. The injected OS command is executed by the server with the privileges of the chatgpt-mcp-server process.
6. The attacker gains initial access to the system.
7. The attacker leverages the initial access to escalate privileges or move laterally within the network.
8. The attacker achieves their objective, such as data exfiltration, deploying malware, or disrupting services.

Impact

Successful exploitation of this OS command injection vulnerability (CVE-2026-7061) in Toowiredd chatgpt-mcp-server can lead to complete system compromise. Attackers can execute arbitrary commands, potentially leading to data breaches, service disruption, or the deployment of malicious software. Given the public availability of the exploit, organizations using this software are at a heightened risk of attack. The lack of a patch from the project maintainers further exacerbates the risk, making proactive detection and mitigation measures essential.

Recommendation

• Monitor web server logs for suspicious HTTP requests targeting the MCP/HTTP component of chatgpt-mcp-server, focusing on requests that might be attempting command injection (log source: webserver, product: linux).
• Deploy the Sigma rule “Detect Suspicious chatgpt-mcp-server Command Injection Attempts” to identify exploitation attempts in web server logs.
• Restrict access to the chatgpt-mcp-server instance to minimize the attack surface.
• Consider deploying a web application firewall (WAF) to filter out malicious requests.
• Monitor child processes spawned by the chatgpt-mcp-server process for unexpected or malicious commands (log source: process_creation, product: linux).