CVE-2026-34177
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
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 attacker with can_edit permission on a VM instance in a restricted project can inject an AppArmor rule and a QEMU chardev configuration that bridges the LXD Unix socket into the guest VM, enabling privilege escalation to LXD cluster administrator and subsequently to host root.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
lxd
- Vendor
- Canonical
- Product
- lxd
- Platforms
- Linux
- Default status
unaffected- Package
- lxd
- Package collection
- https://github.com/canonical
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.12.0 | affected | semver | 5.0.7 | Unavailable | None listed |
| 5.1.0 | affected | semver | 5.21.5 | Unavailable | None listed |
| 6.0.0 | affected | semver | 6.8.0 | Unavailable | None listed |