Un-Mused: How a Single Debug Setting Bypassed macOS Security in Meta’s AI Client

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Posted on Thu Sep 24 2026 | 7:44 pm

Security researcher Patrick Wardle revealed an unpatched zero-day vulnerability in Meta's Muse desktop client for macOS. This flaw lets unprivileged software manipulate the assistant's extensive permissions, compromising input confidentiality and account security. Despite a hotfix from Meta, the vulnerability raises significant concerns about platform trust and security boundaries.

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