DEBIAN-CVE-2026-34178

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Source
https://security-tracker.debian.org/tracker/CVE-2026-34178
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34178.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-34178
Upstream
Published
2026-04-09T10:16:21Z
Modified
2026-09-14T17:03:30Z
Severity
  • 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

In Canonical LXD before 6.8, the backup import path validates project restrictions against backup/index.yaml in the supplied tar archive but creates the instance from backup/container/backup.yaml, a separate file in the same archive that is never checked against project restrictions. An authenticated remote attacker with instance-creation permission in a restricted project can craft a backup archive where backup.yaml carries restricted settings such as security.privileged=true or raw.lxc directives, bypassing all project restriction enforcement and allowing full host compromise.

References

Affected packages

Debian:13 / incus

Package

Name
incus
Purl
pkg:deb/debian/incus?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
6.0.4-2+deb13u6

Affected versions

6.*
6.0.4-2
6.0.4-2+deb13u1~bpo12+1
6.0.4-2+deb13u1
6.0.4-2+deb13u2~bpo12+1
6.0.4-2+deb13u2
6.0.4-2+deb13u3~bpo12+1
6.0.4-2+deb13u3
6.0.4-2+deb13u4~bpo12+1
6.0.4-2+deb13u4
6.0.4-2+deb13u5~bpo12+1
6.0.4-2+deb13u5
6.0.4-2+deb13u6~bpo12+1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34178.json"

Debian:14 / incus

Package

Name
incus
Purl
pkg:deb/debian/incus?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
6.0.6-3

Affected versions

6.*
6.0.4-2
6.0.4-3
6.0.5-1
6.0.5-2
6.0.5-3
6.0.5-4
6.0.5-5
6.0.5-6
6.0.5-7
6.0.5-8
6.0.6-1
6.0.6-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34178.json"

Debian:12 / lxd

Package

Name
lxd
Purl
pkg:deb/debian/lxd?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

5.*
5.0.2-5
5.0.2-5+deb12u1
5.0.2-5+deb12u2
5.0.2-5+deb12u3
5.0.2-5+deb12u4
5.0.2-5+deb12u5
5.0.2-5+deb12u6
5.0.2-6
5.0.2+git20231211.1364ae4-1
5.0.2+git20231211.1364ae4-2
5.0.2+git20231211.1364ae4-3
5.0.2+git20231211.1364ae4-4
5.0.2+git20231211.1364ae4-5
5.0.2+git20231211.1364ae4-6
5.0.2+git20231211.1364ae4-7
5.0.2+git20231211.1364ae4-8
5.0.2+git20231211.1364ae4-9

Ecosystem specific 

{
    "urgency": "end-of-life"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34178.json"

Debian:13 / lxd

Package

Name
lxd
Purl
pkg:deb/debian/lxd?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
5.0.2+git20231211.1364ae4-9+deb13u5

Affected versions

5.*
5.0.2+git20231211.1364ae4-9
5.0.2+git20231211.1364ae4-9+deb13u1
5.0.2+git20231211.1364ae4-9+deb13u2
5.0.2+git20231211.1364ae4-9+deb13u3
5.0.2+git20231211.1364ae4-9+deb13u4

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34178.json"