EUVD-2026-20872

LXD: VM lowlevel restriction bypass via raw.apparmor and raw.qemu.conf...

LXD: VM lowlevel restriction bypass via raw.apparmor and raw.qemu.conf

Summary The isVMLowLevelOptionForbidden function in lxd/project/limits/permissions.go is missing raw.apparmor and raw.qemu.conf from its hardcoded forbidden list. A user with canedit permission on a VM instance in a restricted project can combine these two omissions to bridge the LXD unix socket...

CVE-2026-34177

Canonical LXD versions 4.12 through 6.7 contain an incomplete denylist in isVMLowLevelOptionForbidden lxd/project/limits/permissions.go, which omits raw.apparmor and raw.qemu.conf from the set of keys blocked under the restricted.virtual-machines.lowlevel=block project restriction. A remote...

CVE-2026-34177

Canonical LXD versions 4.12 through 6.7 contain an incomplete denylist in isVMLowLevelOptionForbidden lxd/project/limits/permissions.go, which omits raw.apparmor and raw.qemu.conf from the set of keys blocked under the restricted.virtual-machines.lowlevel=block project restriction. A remote...

Incomplete List of Disallowed Inputs

Overview Affected versions of this package are vulnerable to Incomplete List of Disallowed Inputs via the isVMLowLevelOptionForbidden function in lxd/project/limits/permissions.go. An attacker can set forbidden low-level VM configuration keys, such as raw.apparmor or raw.qemu.conf in a project th...

CVE-2026-34177 VM lowlevel restriction bypass via raw.apparmor and raw.qemu.conf

Canonical LXD versions 4.12 through 6.7 contain an incomplete denylist in isVMLowLevelOptionForbidden lxd/project/limits/permissions.go, which omits raw.apparmor and raw.qemu.conf from the set of keys blocked under the restricted.virtual-machines.lowlevel=block project restriction. A remote...