CVE catalog

CVE-2026-34177

Canonical LXD versions 4.12 through 6.7 contain an…

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.

Severity: Critical · CVSS 9.1CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Published: Apr 9, 2026, 10:16:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.36% · Oct 27, 2026

Projects and upstream resources

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Distribution / release	Package	Version	Status	Source
Debiantrixie-security	lxd	`5.0.2+git20231211.1364ae4-9+deb13u7`	Fixed	[CVE-2026-34177]
Debiantrixie	lxd	`5.0.2+git20231211.1364ae4-9+deb13u5`	FixedDistribution-reported fixed boundary	[CVE-2026-34177]
Debiantrixie	lxd	`5.0.2+git20231211.1364ae4-9+deb13u7`	Fixed	[CVE-2026-34177]

Showing 3 fix observations. All 20 observations, including unknown and conflicting reports, are available below.

Provider details and historical evidence

Distribution / release	Package	Version	Status	Source
GoRelease not reported	github.com/canonical/lxd	Not reported	UnknownSource applicability is not established	Provider not reported
UnknownRelease not reported	lxd	Not reported	UnknownSource applicability is not established	Provider not reported
Debianbookworm	lxd	Not reported	AffectedDistribution reports no fix	[CVE-2026-34177]
Debianbookworm	lxd	`5.0.2-5+deb12u6`	Affected	[CVE-2026-34177]
Debianbookworm-security	lxd	`5.0.2-5+deb12u6`	Affected	[CVE-2026-34177]
Debiantrixie	lxd	`5.0.2+git20231211.1364ae4-9+deb13u5`	FixedDistribution-reported fixed boundary	[CVE-2026-34177]
Debiantrixie	lxd	`5.0.2+git20231211.1364ae4-9+deb13u7`	Fixed	[CVE-2026-34177]
Debiantrixie-security	lxd	`5.0.2+git20231211.1364ae4-9+deb13u7`	Fixed	[CVE-2026-34177]
Ubuntupro	incus	`0.4-1ubuntu1`	Affected	[UBUNTU-CVE-2026-34177]Apr 28, 2026, 4:39:17 PM UTC
Ubuntupro	incus	`0.5.1-1`	Affected	[UBUNTU-CVE-2026-34177]Apr 28, 2026, 4:39:17 PM UTC
Ubuntupro	incus	`0.5.1-3`	Affected	[UBUNTU-CVE-2026-34177]Apr 28, 2026, 4:39:17 PM UTC
Ubuntupro	incus	`0.6-1`	Affected	[UBUNTU-CVE-2026-34177]Apr 28, 2026, 4:39:17 PM UTC
Ubuntupro	incus	`6.0.0-1`	Affected	[UBUNTU-CVE-2026-34177]Apr 28, 2026, 4:39:17 PM UTC
Ubuntupro	incus	`6.0.0-1ubuntu0.1`	Affected	[UBUNTU-CVE-2026-34177]Apr 28, 2026, 4:39:17 PM UTC
Ubuntupro	incus	`6.0.0-1ubuntu0.2`	Affected	[UBUNTU-CVE-2026-34177]Apr 28, 2026, 4:39:17 PM UTC
Ubuntupro	incus	`6.0.0-1ubuntu0.2+esm1`	Affected	[UBUNTU-CVE-2026-34177]Apr 28, 2026, 4:39:17 PM UTC
Ubuntupro	incus	`6.0.0-1ubuntu0.3`	Affected	[UBUNTU-CVE-2026-34177]Apr 28, 2026, 4:39:17 PM UTC
Ubuntupro	incus	`6.0.0-1ubuntu0.3+esm1`	Affected	[UBUNTU-CVE-2026-34177]Apr 28, 2026, 4:39:17 PM UTC
Ubuntupro	incus	`6.0.0-1ubuntu0.3+esm2`	Affected	[UBUNTU-CVE-2026-34177]Apr 28, 2026, 4:39:17 PM UTC
Ubuntupro	incus	`6.0.0-1ubuntu0.3+esm3`	Affected	[UBUNTU-CVE-2026-34177]Apr 28, 2026, 4:39:17 PM UTC

Original provider fields

{
  "package_releases": [
    {
      "name": "lxd",
      "status": "fixed",
      "release": "trixie",
      "version": "5.0.2+git20231211.1364ae4-9+deb13u7"
    },
    {
      "name": "lxd",
      "status": "fixed",
      "release": "trixie-security",
      "version": "5.0.2+git20231211.1364ae4-9+deb13u7"
    },
    {
      "name": "lxd",
      "status": "vulnerable",
      "release": "bookworm",
      "version": "5.0.2-5+deb12u6"
    },
    {
      "name": "lxd",
      "status": "vulnerable",
      "release": "bookworm-security",
      "version": "5.0.2-5+deb12u6"
    }
  ],
  "fixed_versions": [
    {
      "bug": null,
      "name": "lxd",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "not yet assigned",
      "fixed_version": "5.0.2+git20231211.1364ae4-9+deb13u5"
    },
    {
      "bug": null,
      "name": "lxd",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "end-of-life",
      "fixed_version": ""
    }
  ],
  "distribution_packages": [
    {
      "name": "lxd",
      "fixed_version": "not yet fixed",
      "applicability_unknown": true
    },
    {
      "name": "lxd",
      "fixed_version": "",
      "applicability_unknown": true
    },
    {
      "name": "github.com/canonical/lxd",
      "ranges": [
        {
          "type": "SEMVER",
          "events": [
            {
              "introduced": "0.0.0-20210305023314-538ac3df036e"
            }
          ]
        }
      ],
      "ecosystem": "Go",
      "fixed_version": "",
      "applicability_unknown": true
    },
    {
      "name": "incus",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "pro",
      "versions": [
        "0.4-1ubuntu1",
        "0.5.1-1",
        "0.5.1-3",
        "0.6-1",
        "6.0.0-1",
        "6.0.0-1ubuntu0.1",
        "6.0.0-1ubuntu0.2",
        "6.0.0-1ubuntu0.2+esm1",
        "6.0.0-1ubuntu0.3",
        "6.0.0-1ubuntu0.3+esm1",
        "6.0.0-1ubuntu0.3+esm2",
        "6.0.0-1ubuntu0.3+esm3"
      ],
      "ecosystem": "deb",
      "provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-34177",
      "fixed_version": "",
      "provider_source": "pypi",
      "provider_record_id": "UBUNTU-CVE-2026-34177",
      "provider_updated_at": "2026-04-28T16:39:17.324435Z"
    },
    {
      "name": "lxd",
      "ranges": [
        {
          "fixed": "",
          "introduced": "6.0",
          "last_affected": "6.7",
          "start_excluding": ""
        }
      ],
      "ecosystem": "cpe",
      "provider_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34177",
      "fixed_version": "",
      "provider_source": "nvd",
      "provider_record_id": "NVD-CVE-2026-34177",
      "provider_updated_at": "2026-10-26T21:10:00.170"
    }
  ]
}

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[lxd]Unknown
Details (4)
- 5.0.2-5+deb12u6 · amd64 · bookworm
  Affected
  nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
- 5.0.2-5+deb12u6 · arm64 · bookworm
  Affected
  nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
- 5.0.2-5+deb12u6 · amd64 · bookworm-security
  Affected
  nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
- 5.0.2-5+deb12u6 · arm64 · bookworm-security
  Affected
  nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
[lxd-agent]Unknown
Source package: [lxd]
Details (4)
- 5.0.2-5+deb12u6 · amd64 · bookworm
  Affected
  nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
- 5.0.2-5+deb12u6 · arm64 · bookworm
  Affected
  nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
- 5.0.2-5+deb12u6 · amd64 · bookworm-security
  Affected
  nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
- 5.0.2-5+deb12u6 · arm64 · bookworm-security
  Affected
  nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
[lxd-client]Unknown
Source package: [lxd]
Details (4)
- 5.0.2-5+deb12u6 · amd64 · bookworm
  Affected
  nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
- 5.0.2-5+deb12u6 · arm64 · bookworm
  Affected
  nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
- 5.0.2-5+deb12u6 · amd64 · bookworm-security
  Affected
  nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
- 5.0.2-5+deb12u6 · arm64 · bookworm-security
  Affected
  nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
[lxd-migrate]Unknown
Source package: [lxd]
Details (4)
- 5.0.2-5+deb12u6 · amd64 · bookworm
  Affected
  nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
- 5.0.2-5+deb12u6 · arm64 · bookworm
  Affected
  nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
- 5.0.2-5+deb12u6 · amd64 · bookworm-security
  Affected
  nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
- 5.0.2-5+deb12u6 · arm64 · bookworm-security
  Affected
  nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
[lxd-tools]Unknown
Source package: [lxd]
Details (4)
- 5.0.2-5+deb12u6 · amd64 · bookworm
  Affected
  nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
- 5.0.2-5+deb12u6 · arm64 · bookworm
  Affected
  nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
- 5.0.2-5+deb12u6 · amd64 · bookworm-security
  Affected
  nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
- 5.0.2-5+deb12u6 · arm64 · bookworm-security
  Affected
  nvd · lxd · debian · bookworm; nvd · lxd · debian · 12

[Debian 13 (Trixie)]

[golang-github-canonical-lxd-dev]Unknown
Source package: [lxd]
Details (4)
- 5.0.2+git20231211.1364ae4-9+deb13u7 · all · trixie
  Fixed · Fixed: 5.0.2+git20231211.1364ae4-9+deb13u5
  nvd · lxd · debian · 13
- 5.0.2+git20231211.1364ae4-9+deb13u7 · all · trixie
  Fixed · Fixed: 5.0.2+git20231211.1364ae4-9+deb13u5
  nvd · lxd · debian · 13
- 5.0.2+git20231211.1364ae4-9+deb13u7 · all · trixie-security
  Fixed · Fixed: 5.0.2+git20231211.1364ae4-9+deb13u5
  nvd · lxd · debian · 13
- 5.0.2+git20231211.1364ae4-9+deb13u7 · all · trixie-security
  Fixed · Fixed: 5.0.2+git20231211.1364ae4-9+deb13u5
  nvd · lxd · debian · 13
[golang-github-lxc-incus-dev]Unknown
Source package: [incus]
Details (7)
- 6.0.4-2+deb13u8 · all · trixie
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
- 6.0.4-2+deb13u8 · all · trixie
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
- 7.0.1-2~bpo13+1 · all · trixie-backports
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
- 7.0.1-2~bpo13+1 · all · trixie-backports
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
- 6.0.4-2+deb13u11 · all · trixie-security
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
- 6.0.4-2+deb13u9 · all · trixie-security · Historical version
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
- 6.0.4-2+deb13u9 · all · trixie-security
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
[incus]Unknown
Details (7)
- 6.0.4-2+deb13u8 · amd64 · trixie
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
- 6.0.4-2+deb13u8 · arm64 · trixie
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
- 7.0.1-2~bpo13+1 · amd64 · trixie-backports
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
- 7.0.1-2~bpo13+1 · arm64 · trixie-backports
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
- 6.0.4-2+deb13u11 · amd64 · trixie-security
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
- 6.0.4-2+deb13u9 · amd64 · trixie-security · Historical version
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
- 6.0.4-2+deb13u9 · arm64 · trixie-security
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
[incus-agent]Unknown
Source package: [incus]
Details (7)
- 6.0.4-2+deb13u8 · amd64 · trixie
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
- 6.0.4-2+deb13u8 · arm64 · trixie
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
- 7.0.1-2~bpo13+1 · amd64 · trixie-backports
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
- 7.0.1-2~bpo13+1 · arm64 · trixie-backports
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
- 6.0.4-2+deb13u11 · amd64 · trixie-security
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
- 6.0.4-2+deb13u9 · amd64 · trixie-security · Historical version
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
- 6.0.4-2+deb13u9 · arm64 · trixie-security
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
[incus-base]Unknown
Source package: [incus]
Details (7)
- 6.0.4-2+deb13u8 · amd64 · trixie
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
- 6.0.4-2+deb13u8 · arm64 · trixie
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
- 7.0.1-2~bpo13+1 · amd64 · trixie-backports
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
- 7.0.1-2~bpo13+1 · arm64 · trixie-backports
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
- 6.0.4-2+deb13u11 · amd64 · trixie-security
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
- 6.0.4-2+deb13u9 · amd64 · trixie-security · Historical version
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
- 6.0.4-2+deb13u9 · arm64 · trixie-security
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
[incus-client]Unknown
Source package: [incus]
Details (7)
- 6.0.4-2+deb13u8 · amd64 · trixie
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
- 6.0.4-2+deb13u8 · arm64 · trixie
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
- 7.0.1-2~bpo13+1 · amd64 · trixie-backports
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
- 7.0.1-2~bpo13+1 · arm64 · trixie-backports
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
- 6.0.4-2+deb13u11 · amd64 · trixie-security
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
- 6.0.4-2+deb13u9 · amd64 · trixie-security · Historical version
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
- 6.0.4-2+deb13u9 · arm64 · trixie-security
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
[incus-extra]Unknown
Source package: [incus]
Details (7)
- 6.0.4-2+deb13u8 · amd64 · trixie
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
- 6.0.4-2+deb13u8 · arm64 · trixie
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
- 7.0.1-2~bpo13+1 · amd64 · trixie-backports
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
- 7.0.1-2~bpo13+1 · arm64 · trixie-backports
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
- 6.0.4-2+deb13u11 · amd64 · trixie-security
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
- 6.0.4-2+deb13u9 · amd64 · trixie-security · Historical version
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
- 6.0.4-2+deb13u9 · arm64 · trixie-security
  Fixed · Fixed: 6.0.2-1
  nvd · incus · debian · 13
[lxd]Unknown
Details (4)
- 5.0.2+git20231211.1364ae4-9+deb13u7 · amd64 · trixie
  Fixed · Fixed: 5.0.2+git20231211.1364ae4-9+deb13u5
  nvd · lxd · debian · 13
- 5.0.2+git20231211.1364ae4-9+deb13u7 · arm64 · trixie
  Fixed · Fixed: 5.0.2+git20231211.1364ae4-9+deb13u5
  nvd · lxd · debian · 13
- 5.0.2+git20231211.1364ae4-9+deb13u7 · amd64 · trixie-security
  Fixed · Fixed: 5.0.2+git20231211.1364ae4-9+deb13u5
  nvd · lxd · debian · 13
- 5.0.2+git20231211.1364ae4-9+deb13u7 · arm64 · trixie-security
  Fixed · Fixed: 5.0.2+git20231211.1364ae4-9+deb13u5
  nvd · lxd · debian · 13
[lxd-agent]Unknown
Source package: [lxd]
Details (4)
- 5.0.2+git20231211.1364ae4-9+deb13u7 · amd64 · trixie
  Fixed · Fixed: 5.0.2+git20231211.1364ae4-9+deb13u5
  nvd · lxd · debian · 13
- 5.0.2+git20231211.1364ae4-9+deb13u7 · arm64 · trixie
  Fixed · Fixed: 5.0.2+git20231211.1364ae4-9+deb13u5
  nvd · lxd · debian · 13
- 5.0.2+git20231211.1364ae4-9+deb13u7 · amd64 · trixie-security
  Fixed · Fixed: 5.0.2+git20231211.1364ae4-9+deb13u5
  nvd · lxd · debian · 13
- 5.0.2+git20231211.1364ae4-9+deb13u7 · arm64 · trixie-security
  Fixed · Fixed: 5.0.2+git20231211.1364ae4-9+deb13u5
  nvd · lxd · debian · 13
[lxd-client]Unknown
Source package: [lxd]
Details (4)
- 5.0.2+git20231211.1364ae4-9+deb13u7 · amd64 · trixie
  Fixed · Fixed: 5.0.2+git20231211.1364ae4-9+deb13u5
  nvd · lxd · debian · 13
- 5.0.2+git20231211.1364ae4-9+deb13u7 · arm64 · trixie
  Fixed · Fixed: 5.0.2+git20231211.1364ae4-9+deb13u5
  nvd · lxd · debian · 13
- 5.0.2+git20231211.1364ae4-9+deb13u7 · amd64 · trixie-security
  Fixed · Fixed: 5.0.2+git20231211.1364ae4-9+deb13u5
  nvd · lxd · debian · 13
- 5.0.2+git20231211.1364ae4-9+deb13u7 · arm64 · trixie-security
  Fixed · Fixed: 5.0.2+git20231211.1364ae4-9+deb13u5
  nvd · lxd · debian · 13
[lxd-migrate]Unknown
Source package: [lxd]
Details (4)
- 5.0.2+git20231211.1364ae4-9+deb13u7 · amd64 · trixie
  Fixed · Fixed: 5.0.2+git20231211.1364ae4-9+deb13u5
  nvd · lxd · debian · 13
- 5.0.2+git20231211.1364ae4-9+deb13u7 · arm64 · trixie
  Fixed · Fixed: 5.0.2+git20231211.1364ae4-9+deb13u5
  nvd · lxd · debian · 13
- 5.0.2+git20231211.1364ae4-9+deb13u7 · amd64 · trixie-security
  Fixed · Fixed: 5.0.2+git20231211.1364ae4-9+deb13u5
  nvd · lxd · debian · 13
- 5.0.2+git20231211.1364ae4-9+deb13u7 · arm64 · trixie-security
  Fixed · Fixed: 5.0.2+git20231211.1364ae4-9+deb13u5
  nvd · lxd · debian · 13
[lxd-tools]Unknown
Source package: [lxd]
Details (4)
- 5.0.2+git20231211.1364ae4-9+deb13u7 · amd64 · trixie
  Fixed · Fixed: 5.0.2+git20231211.1364ae4-9+deb13u5
  nvd · lxd · debian · 13
- 5.0.2+git20231211.1364ae4-9+deb13u7 · arm64 · trixie
  Fixed · Fixed: 5.0.2+git20231211.1364ae4-9+deb13u5
  nvd · lxd · debian · 13
- 5.0.2+git20231211.1364ae4-9+deb13u7 · amd64 · trixie-security
  Fixed · Fixed: 5.0.2+git20231211.1364ae4-9+deb13u5
  nvd · lxd · debian · 13
- 5.0.2+git20231211.1364ae4-9+deb13u7 · arm64 · trixie-security
  Fixed · Fixed: 5.0.2+git20231211.1364ae4-9+deb13u5
  nvd · lxd · debian · 13

Observed: Oct 27, 2026, 7:59:16 AM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [Go Vulnerability Database] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database]