Researchers used Mythos Preview to uncover the first public macOS kernel memory corruption exploit on Apple’s M5 silicon, bypassing Apple’s flagship Memory Integrity Enforcement in just five days.

Researchers used Mythos Preview to uncover the first public macOS kernel memory corruption exploit on Apple’s M5 silicon, bypassing Apple’s flagship Memory Integrity Enforcement in just five days.
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Apple’s 26.5 notes already credit Calif, Claude and Anthropic on CVE-2026-28952, and Mozilla just said Mythos helped surface 271 Firefox security bugs. For crypto, the uncomfortable read is endpoint risk: multisigs, passkeys, MPC dashboards and hardware-wallet companion apps still route through laptops and browsers whose exploit cost curve is now compressing hard. Audit markets will start pricing AI-assisted exploit throughput the way MEV desks price latency, because the bottleneck moves from “find a bug” to “patch, disclose, and rotate keys before someone chains it.”

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