Magic: The Gathering Arena (Windows/Steam client; 2026.59.30.12801.127931.6 and certain later 2026.60.x builds) passes a server-supplied URL from a home-screen carousel GoToExternalUrl action directly to the Windows shell via Application.Op…

{
                    "defaultStatus": "unknown",
                    "platforms": [
                        "Windows"
                    ],
                    "product": "Magic: The Gathering Arena",
                    "vendor": "Wizards of the Coast",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "2026.59.30.12801.127931.6",
                            "versionType": "custom"
                        }
                    ]
                }