Security/shipped/2026-09-21

Meta's Muse AI Assistant Launched with Zero-Day Vulnerability on Mac, Later Patched

Meta's recently launched Muse AI assistant for Mac was found to contain a zero-day vulnerability. Security researcher Pasquale Pillitteri identified the flaw, which could allow local malware to hijack the AI agent, redirect dictation traffic, and potentially inject malicious code or turn the assistant into a backdoor. The vulnerability was present upon the application's release, exposing users from its initial rollout. Meta has since confirmed the vulnerability and released a patch to address the security issue. While the exact number of affected users is not specified, CNET reported that Muse had been downloaded half a million times, and Ynetnews noted its rapid download rate compared to ChatGPT. The widespread reporting across numerous outlets confirms the existence and patching of the flaw, with Meta's action serving as direct confirmation.

16 articles from 16 outlets covered this story. No difference in framing or figures was found between them. The underlying claim is sourced from a shipped.

What do all outlets agree on?

16 outlets covered “Meta's Muse AI Assistant Launched with Zero-Day Vulnerability on Mac, Later Patched”. All of them report the following:

  • Meta's Muse AI assistant had a zero-day vulnerability.
  • The vulnerability affected the Mac version of the app.
  • The flaw could allow attackers to hijack the AI agent or inject malware.
  • Security researcher Pasquale Pillitteri discovered the vulnerability.
  • Meta has released a patch to fix the flaw.

Did outlets disagree about this?

No. All 16 outlets covering “Meta's Muse AI Assistant Launched with Zero-Day Vulnerability on Mac, Later Patched” reported it the same way — no difference in framing or figures was found between them.

Which outlets covered this?

All 16 articles found on this story, grouped by the stance of the piece. Every link goes to the original publisher.

What related stories are there?

Which companies does this involve?

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