p_69_branch_monkey_mcp EUVD-2026-26708

No vendor-released patch has been confirmed at time of analysis; the project has not responded to early notification. Immediate remediation requires manually updating the codebase to a commit that includes the fix for dev_script parameter sanitization and validation. Monitor the GitHub repository (https://github.com/eyal-gor/p_69_branch_monkey_mcp/) for a response commit that adds input validation, command escaping (using shlex.quote() or subprocess with list arguments), or disables the vulnerable endpoint. Until a fix is merged, implement compensating controls: (1) restrict network access to the Preview Endpoint to trusted internal networks only via firewall or reverse proxy rules-this eliminates the AV:N attack vector; (2) disable or remove the Preview Endpoint feature if it is not required for production workflows; (3) if the endpoint must remain active, implement input validation at the application level that rejects dev_script parameters containing shell metacharacters (|, ;, &, $, backticks, newlines). Note that firewall restriction has operational impact (limits preview functionality to internal users only) and input validation may block legitimate script names containing special characters. For critical deployments, consider forking and patching the code locally or switching to a maintained alternative until upstream provides a fix.