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CVE-2026-43783 is a race condition in macOS Tahoe that could allow a malicious local application to gain root privileges. The issue was addressed by improved locking in macOS Tahoe 26.6.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This 16-file repository contains a native macOS Xcode proof-of-concept application and a shell-based post-exploitation wrapper for CVE-2026-43783. The principal code is Objective-C in poc/ViewController.m: when its view loads, it connects locally over Mach/XPC to com.apple.DesktopServicesHelper, archives an array containing /private/etc/pam.d, and submits the RepairPermissionsForCloudItems request. The claimed flaw is insufficient authorization in the daemon's permission-repair handler, enabling an unprivileged local user to change ownership of an arbitrary protected directory. lpe.sh launches the built application, verifies ownership of the PAM directory, writes a pam_permit-based sudo_local policy, and starts sudo/su for root access. Supporting files are standard Xcode project metadata, Cocoa application boilerplate, storyboard, assets, and sandbox entitlements. The PoC has no network communications, remote callback, persistence component beyond the altered PAM file, or configurable payload; its hardcoded PAM escalation makes it an operational local exploit rather than a detection script.
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14 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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Cross-references every affected SKU, including bundled OEM variants.
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