Attack Chain

1. The attacker identifies a GitPilot-MCP instance running a vulnerable version (<= 9ed9f153ba4158a2ad230ee4871b25130da29ffd).
2. The attacker crafts a malicious HTTP request targeting the repo_path function in main.py.
3. Within the HTTP request, the attacker injects a command payload into the command argument. This payload is designed to execute arbitrary commands on the server.
4. The GitPilot-MCP application processes the request without proper sanitization of the command argument.
5. The vulnerable repo_path function executes the injected command using a system call (e.g., os.system() or similar).
6. The injected command executes with the privileges of the GitPilot-MCP application user, potentially allowing for escalated privileges if the application runs as a privileged user.
7. The attacker gains arbitrary code execution on the server.
8. The attacker can then perform various malicious activities, such as installing malware, stealing sensitive data, or pivoting to other systems on the network.

Impact

Successful exploitation of CVE-2026-6980 allows a remote attacker to execute arbitrary commands on the affected system. The impact of this vulnerability is high, as it could lead to complete system compromise, data breaches, and further malicious activity within the network. Since public exploit code is available, the risk of widespread exploitation is increased. The lack of vendor response further exacerbates the issue, leaving users vulnerable.

Recommendation

• Inspect web server logs for suspicious requests targeting main.py with unusual characters or command-like syntax in the command parameter, and deploy the “GitPilot-MCP Command Injection Attempt” Sigma rule to detect exploitation attempts.
• Monitor process creation events for unexpected processes spawned by the GitPilot-MCP application, using the “GitPilot-MCP Suspicious Child Process” Sigma rule to identify potentially malicious activity.
• Implement input validation and sanitization for all user-supplied input, especially the command argument in the repo_path function, to prevent command injection attacks.
• Apply any available patches or updates for GitPilot-MCP as soon as they are released to address the vulnerability.
• Consider deploying a web application firewall (WAF) to filter out malicious requests targeting the repo_path function.