CVE-2026-54672 electron-updater: Uncontrolled search path elements within `AppImage` built by `app-builder-lib`

electron-updater allows for automatic updates for Electron apps. Prior to 26.15.0, AppImage targets built by app-builder-lib could use an empty path component when setting the LDLIBRARYPATH environment variable at runtime. This causes the current working directory to be added to the dynamic linke...