DEBIAN-CVE-2026-41684
Incus is a system container and virtual machine manager. Prior to version 7.0.0, backup.GetInfo() trusts the inline backup/index.yaml config when present and only falls back to parsing the legacy backup/container/backup.yaml file if result.Config == nil. As a result, an archive can carry a valid inline config that passes the initial import preflight while also carrying a malformed legacy backup/container/backup.yaml file that is reparsed later from the restored file system. ParseConfigYamlFile() accepts YAML documents with no container section, and multiple downstream consumers then dereference. Container without checking for nil. Confirmed examples in the instance restore and import flow include backup.UpdateInstanceConfig() and internalImportFromBackup(). An authenticated user with permission to import instance backups may be able to crash the Incus daemon with a crafted backup archive whose inline backup/index.yaml is valid but whose extracted legacy backup.yaml omits container. The crash occurs in the restore path after archive extraction has begun. This issue has been patched in version 7.0.0.
DEBIAN-CVE-2026-41684
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-41684
incus
Source reference: /affected/0/package/name
- Affected versions
- 6.0.4-2
Source reference:
/affected/0/versions6.0.4-2+deb13u1Source reference:
/affected/0/versions6.0.4-2+deb13u1~bpo12+1Source reference:
/affected/0/versions6.0.4-2+deb13u2Source reference:
/affected/0/versions6.0.4-2+deb13u2~bpo12+1Source reference:
/affected/0/versions6.0.4-2+deb13u3Source reference:
/affected/0/versions6.0.4-2+deb13u3~bpo12+1Source reference:
/affected/0/versions6.0.4-2+deb13u4Source reference:
/affected/0/versions6.0.4-2+deb13u4~bpo12+1Source reference:
/affected/0/versions6.0.4-2+deb13u5Source reference:
/affected/0/versions6.0.4-2+deb13u5~bpo12+1Source reference:
/affected/0/versions6.0.4-2+deb13u6Source reference:
/affected/0/versions6.0.4-2+deb13u6~bpo12+1Source reference:
/affected/0/versions6.0.4-2+deb13u7~bpo12+1Source reference:
/affected/0/versions - Fixed versions
- 6.0.4-2+deb13u7
Source reference:
/affected/0/ranges - Prerequisites
- Not stated in this record
incus
Source reference: /affected/1/package/name
- Affected versions
- 6.0.4-2
Source reference:
/affected/1/versions6.0.4-3Source reference:
/affected/1/versions6.0.5-1Source reference:
/affected/1/versions6.0.5-2Source reference:
/affected/1/versions6.0.5-3Source reference:
/affected/1/versions6.0.5-4Source reference:
/affected/1/versions6.0.5-5Source reference:
/affected/1/versions6.0.5-6Source reference:
/affected/1/versions6.0.5-7Source reference:
/affected/1/versions6.0.5-8Source reference:
/affected/1/versions6.0.6-1Source reference:
/affected/1/versions6.0.6-2Source reference:
/affected/1/versions6.0.6-3Source reference:
/affected/1/versions6.14.0-1~exp1Source reference:
/affected/1/versions6.15.0-1~exp1Source reference:
/affected/1/versions6.16.0-1~exp1Source reference:
/affected/1/versions6.17.0-1~exp1Source reference:
/affected/1/versions6.20.0-1~exp1Source reference:
/affected/1/versions6.21.0-1~exp1Source reference:
/affected/1/versions6.22.0-1~exp1Source reference:
/affected/1/versions6.23.0-1~exp1Source reference:
/affected/1/versions7.0.0-1~bpo13+1Source reference:
/affected/1/versions - Fixed versions
- 7.0.0-1
Source reference:
/affected/1/ranges - Prerequisites
- Not stated in this record
lxd
Source reference: /affected/2/package/name
- Affected versions
- 5.0.2+git20231211.1364ae4-1
Source reference:
/affected/2/versions5.0.2+git20231211.1364ae4-2Source reference:
/affected/2/versions5.0.2+git20231211.1364ae4-3Source reference:
/affected/2/versions5.0.2+git20231211.1364ae4-4Source reference:
/affected/2/versions5.0.2+git20231211.1364ae4-5Source reference:
/affected/2/versions5.0.2+git20231211.1364ae4-6Source reference:
/affected/2/versions5.0.2+git20231211.1364ae4-7Source reference:
/affected/2/versions5.0.2+git20231211.1364ae4-8Source reference:
/affected/2/versions5.0.2+git20231211.1364ae4-9Source reference:
/affected/2/versions5.0.2-5Source reference:
/affected/2/versions5.0.2-5+deb12u1Source reference:
/affected/2/versions5.0.2-5+deb12u2Source reference:
/affected/2/versions5.0.2-5+deb12u3Source reference:
/affected/2/versions5.0.2-5+deb12u4Source reference:
/affected/2/versions5.0.2-5+deb12u5Source reference:
/affected/2/versions5.0.2-5+deb12u6Source reference:
/affected/2/versions5.0.2-6Source reference:
/affected/2/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
lxd
Source reference: /affected/3/package/name
- Affected versions
- 5.0.2+git20231211.1364ae4-9
Source reference:
/affected/3/versions5.0.2+git20231211.1364ae4-9+deb13u1Source reference:
/affected/3/versions5.0.2+git20231211.1364ae4-9+deb13u2Source reference:
/affected/3/versions5.0.2+git20231211.1364ae4-9+deb13u3Source reference:
/affected/3/versions5.0.2+git20231211.1364ae4-9+deb13u4Source reference:
/affected/3/versions5.0.2+git20231211.1364ae4-9+deb13u5Source reference:
/affected/3/versions - Fixed versions
- 5.0.2+git20231211.1364ae4-9+deb13u6
Source reference:
/affected/3/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "6.0.4-2+deb13u7"
}
]
}
],
"package": {
"name": "incus",
"purl": "pkg:deb/debian/incus?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"6.0.4-2",
"6.0.4-2+deb13u1",
"6.0.4-2+deb13u1~bpo12+1",
"6.0.4-2+deb13u2",
"6.0.4-2+deb13u2~bpo12+1",
"6.0.4-2+deb13u3",
"6.0.4-2+deb13u3~bpo12+1",
"6.0.4-2+deb13u4",
"6.0.4-2+deb13u4~bpo12+1",
"6.0.4-2+deb13u5",
"6.0.4-2+deb13u5~bpo12+1",
"6.0.4-2+deb13u6",
"6.0.4-2+deb13u6~bpo12+1",
"6.0.4-2+deb13u7~bpo12+1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-41684.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "7.0.0-1"
}
]
}
],
"package": {
"name": "incus",
"purl": "pkg:deb/debian/incus?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"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",
"7.0.0-1~bpo13+1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-41684.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "lxd",
"purl": "pkg:deb/debian/lxd?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"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",
"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"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-41684.json"
},
"ecosystem_specific": {
"urgency": "end-of-life"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.0.2+git20231211.1364ae4-9+deb13u6"
}
]
}
],
"package": {
"name": "lxd",
"purl": "pkg:deb/debian/lxd?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"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"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-41684.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #57636 · Revision 1
- Added to Heist Feed
- Publisher date