DEBIAN-CVE-2026-85526

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Source
https://security-tracker.debian.org/tracker/CVE-2026-85526
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-85526.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-85526
Upstream
Published
2026-09-28T14:17:20Z
Modified
2026-09-29T09:00:26Z
Severity
  • 9.9 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

Path traversal in the Btrfs storage driver (unpackVolume) in Canonical LXD on Linux allows an authenticated user with instance creation privileges to delete or replace arbitrary files and directories on the host filesystem as root via a crafted subvolumes[].path entry in backup/optimized_header.yaml during a btrfs optimized backup import.

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+deb13u1

Affected versions

6.*
6.0.4-2
6.0.4-2+deb13u1~bpo12+1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-85526.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

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
6.0.6-3
6.14.0-1~exp1
6.15.0-1~exp1
6.16.0-1~exp1
6.17.0-1~exp1
6.20.0-1~exp1
6.21.0-1~exp1
6.22.0-1~exp1
6.23.0-1~exp1
7.*
7.0.0-1~bpo13+1
7.0.0-1
7.0.0-2~bpo13+1
7.0.0-2
7.0.0-3
7.0.0-4
7.0.0-5~bpo13+1
7.0.0-5
7.0.1-1~bpo13+1
7.0.1-1
7.0.1-2~bpo13+1
7.0.1-2
7.0.1-3~bpo13+1
7.0.1-3
7.0.1-4
7.0.1-5
7.1.0-1~exp1
7.2.0-1~exp1
7.2.0-1~exp2
7.2.0-1~exp3
7.3.0-1~exp1
7.4.0-1~exp1
7.5.1-1~exp1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-85526.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-2026-85526.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

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
5.0.2+git20231211.1364ae4-9+deb13u5
5.0.2+git20231211.1364ae4-9+deb13u6
5.0.2+git20231211.1364ae4-9+deb13u7

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-85526.json"