An authorization issue was addressed with improved validation. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, watchOS 27. An app may be able to access motion data from headphones without user consent.
https://support.apple.com/en-us/149043
https://support.apple.com/en-us/149042
https://support.apple.com/en-us/149041
https://support.apple.com/en-us/149037
https://support.apple.com/en-us/149036