Januscape: Guest-to-Host Escape in KVM/x86 [CVE-2026-53359]
Summary
Januscape documents a KVM guest-to-host escape vulnerability (CVE-2026-53359) in KVM/x86. It describes a use-after-free in the shadow MMU emulation that can be triggered from the guest to panic or compromise the host, notes historical context including its use in a Google kvmCTF, and provides PoC usage and an outline of affected versions and disclosure details.