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This zero-day flaw in Meta's Muse desktop client exposes critical risks for AI assistants running on local devices, allowing unprivileged software to hijack microphone access and steal authentication tokens. The incident underscores the inherent security challenges of granting extensive system permissions to autonomous AI agents, particularly when configuration parameters lack proper sandboxing or validation. For developers and users alike, this highlights the urgent need for rigorous input validation and strict permission boundaries in next-generation AI applications.
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Un-Mused: How a Single Debug Setting Bypassed macOS Security in Meta’s AI Client

InfoQ3 min read

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. By Olimpiu Pop

Security researcher Patrick Wardle, founder of the Objective-See Foundation, has disclosed an unpatched zero-day vulnerability affecting Meta's newly released desktop client for Muse on macOS. While Meta chief executive officer Mark Zuckerberg had claimed that the autonomous artificial intelligence assistant was built from the ground up for privacy and security, the reported flaw enables locally running software or shell commands to hijack the application.…

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