Apple releases macOS Tahoe 26.6.1, a security update that fixes a vulnerability affecting Screen Sharing on Mac devices. Multiple reports describe the flaw as critical and say the update addresses an authentication-related issue, with Apple also improving state management as part of the fix. The update is intended for users running macOS Tahoe and is also described as available to users on older supported versions of macOS Sonoma and Sequoia. The articles also advise users to install the update. Separate reporting notes that Apple’s MacBook Air availability is affected by global memory shortages, with some configurations facing shipping estimates that slip by several weeks. The macOS update and the hardware delivery delays are presented in parallel coverage, but the software release is focused specifically on resolving the Screen Sharing security problem. Users are expected to apply the patch through Apple’s standard update mechanisms to mitigate the reported vulnerability.