HEIF Heist: libheif flaws allowed researchers to hack OpenAI, Slack, Meta and more

tszzl · x · 2026-09-18

Researchers are disclosing HEIF Heist, a months-long investigation into the libheif image decoding library. The chain of vulnerabilities enabled them to compromise OpenAI, Slack, Meta, GitHub Enterprise, Rails, Next.js, ImageMagick, and many other widely used services and frameworks. The team calls it a real-life xkcd #234: one obscure image library sitting beneath a huge portion of the modern internet.

Related event: HEIF Heist Image Library Flaws Hit OpenAI, Slack, Meta and GitHub(4 posts)→

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