Januscape: Guest-to-Host Escape in KVM/x86 [CVE-2026-53359]
Technical disclosure of 'Januscape,' a critical guest-to-host escape vulnerability in KVM/x86 environments. The vulnerability allows an attacker to break out of a virtual machine to the host kernel, affecting both Intel and AMD architectures.
This document describes the Januscape (CVE-2026-53359) vulnerability discovered and reported by Hyunwoo Kim (@v4bel) . It is a KVM escape vulnerability that lets a guest escape to the host in a KVM/x86 environment. To the best of public knowledge, this is the first guest-to-host exploit research triggerable on both Intel and AMD rather than being limited to a single architecture.
Get the full story
Sign up for Headlinne to unlock AI insights, political bias analysis, and your personalized news feed.
Create free accountAlready have an account? Sign in