This issue was addressed with improved validation of the caller's access. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Tahoe 26.7, visionOS 27. An app may be able to access protected user data.

{
                    "vendor": "Apple",
                    "product": "iOS and iPadOS",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "lessThan": "27",
                            "versionType": "custom"
                        }
                    ]
                }

{
                    "vendor": "Apple",
                    "product": "macOS",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "lessThan": "26.7",
                            "versionType": "custom"
                        },
                        {
                            "version": "0",
                            "status": "affected",
                            "lessThan": "27",
                            "versionType": "custom"
                        }
                    ]
                }

{
                    "vendor": "Apple",
                    "product": "visionOS",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "lessThan": "27",
                            "versionType": "custom"
                        }
                    ]
                }