Highcharts: dotted series.keys paths write to Object.prototype

{
                    "vendor": "highcharts",
                    "product": "highcharts",
                    "versions": [
                        {
                            "version": ">= 6.1.0, < 11.4.9",
                            "status": "affected"
                        },
                        {
                            "version": ">= 12.0.0, < 12.6.1",
                            "status": "affected"
                        },
                        {
                            "version": ">= 13.0.0, < 13.1.0",
                            "status": "affected"
                        }
                    ]
                }