Description
Incus is a system container and virtual machine manager. Prior to version 7.0.0, user provided image and backup tarballs would be unpacked and YAML files parsed without any size restrictions. This was making it easy for an authenticated user to provide a crafted image or backup tarball that when parsed by Incus would lead to a very large YAML document being loaded into memory, potentially causing the entire server to run out of memory. This issue has been patched in version 7.0.0.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| lxc | incus | < 7.0.0 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | incus | 7.0.0-1 | — |
| Debian 13 | incus | 6.0.4-2+deb13u7 | — |
| Debian 13 | lxd | 5.0.2+git20231211.1364ae4-9+deb13u6 | — |
| Debian 12 | lxd | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | incus | No fix yet | — |
| Ubuntu 25.10 | incus | No fix yet | — |
| Ubuntu 20.04 LTS | lxd | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 26.04 LTS | incus | No fix yet | — |
| Ubuntu Pro 24.04 LTS | incus | No fix yet | — |
| Ubuntu Pro 18.04 LTS | lxd | No fix yet | — |
| Ubuntu Pro 16.04 LTS | lxd | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 16.0 | govulncheck-vulndb | 0.0.20260723T184607-160000.1.1 | openSUSE-SU-2026:21483-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | incus | 7.0.0-r0 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/lxc/incus | all versions | — | GO-2026-5168 |
| Go | github.com/lxc/incus/v6 | all versions | — | GO-2026-5168 |
| Go | github.com/lxc/incus/v6/cmd/incusd | <= 6.23.0 | — | GHSA-67wx-r9xr-x75x |
Advisories 1
- openSUSE-SU-2026:21483-1 Security update for govulncheck-vulndb SUSE / openSUSE Security Updates · Jul 31, 2026