A newly disclosed critical flaw in the Linux kernel allows code inside a virtual machine to read memory on the host computer it runs on. A researcher demonstrated the leak against Vercel’s live cloud sandboxes, and Vercel confirmed it.
The flaw, now tracked as CVE-2026-99999 and nicknamed PwnEscape, is in the Linux kernel’s networking code, not in any one cloud’s setup, so it reaches the shared
This post was originally published on The Hacker News.
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