DEBIAN-CVE-2026-63294

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Source
https://security-tracker.debian.org/tracker/CVE-2026-63294
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-63294.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-63294
Upstream
Published
2026-08-12T20:17:47Z
Modified
2026-09-12T08:47:31Z
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

A link following vulnerability in LXD allows an attacker to achieve root command execution on the host system. During the import or unpacking of crafted image or backup archives, LXD fails to properly validate and confine the backup.yaml file when it exists as a symbolic link. An attacker can exploit this flaw by providing a malicious archive with a symlinked backup.yaml file, causing LXD to process unconfined configuration metadata and execute arbitrary commands with root privileges.

References

Affected packages

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-2026-63294.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-2026-63294.json"