Security
Critical PwnEscape Linux Kernel Vulnerability Lets Guest VMs Read Host Memory
The Hacker News·October 15, 2026·1 min read
A critical Linux kernel flaw, CVE-2026-99999, nicknamed PwnEscape, lets code inside a virtual machine read host memory. A researcher demonstrated the leak against Vercel's live cloud sandboxes, and Vercel confirmed it. The bug resides in the kernel's networking code, not any single cloud setup, so it affects shared infrastructure broadly.
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