Insufficient Verification of Data Authenticity

Summary

Electron is an open-source framework for writing cross-platform desktop applications using JavaScript, HTML, and CSS. This only impacts apps that have the `embeddedAsarIntegrityValidation` and `onlyLoadAppFromAsar` fuses enabled. Apps without these fuses enabled are not impacted. This issue is specific to macOS as these fuses are only currently supported on macOS. Specifically, this issue can only be exploited if your app is launched from a filesystem the attacker has write access too. i.e. the ability to edit files inside the `.app` bundle on macOS which these fuses are supposed to protect against. There are no app side workarounds, you must update to a patched version of Electron. This issue affects versions through 22.3.23, 23.0.0-alpha.1 through 23.3.13, 24.0.0-alpha.1 through 24.8.2, 25.0.0-alpha.1 through 25.8.0, 26.0.0-alpha.1 through 26.2.0, and 27.0.0-alpha.1 through 27.0.0-alpha.6.