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FFmpeg's 21 zero-days, Ruby cooldown feature, Microsoft disrupted by Shai-Hulud worm & Meta AI tool compromise / Intel Chat [#331]

June 15, 2026 · 29 min

Show notes

In this episode of The Cybersecurity Defenders Podcast, we discuss some intel being shared in the LimaCharlie community.

  • DepthFirst reported that it's autonomous security agent discovered 21 previously unknown vulnerabilities in FFmpeg, a widely deployed multimedia framework used across browsers, streaming infrastructure, and other systems that process media.
  • Bundler, 4.0.13 introduces a new security feature called cooldown, aimed at reducing the impact of software supply chain attacks in the Ruby ecosystem.
  • A new variant of the Shai-Hulud supply chain worm, known as Miasma, briefly disrupted Microsoft's software development ecosystem after compromising dozens of GitHub repositories.
  • Meta says approximately 20,000 Instagram accounts may have been compromised through the abuse of an AI powered account recovery support system.

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