CVE-2026-41648
Incus has Unbounded YAML Metadata Decode via Parsing in github.com/lxc/incus
5.0
MEDIUM
CVSS 3.1
EPSS 0.27%
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.
How to fix CVE-2026-41648
To remediate CVE-2026-41648, upgrade the affected package to a fixed version below.
- —upgrade to 6.0.4-2+deb13u7 or later
- —no fix listed
Is CVE-2026-41648 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 6.0.4-2+deb13u7
- from 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.0 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L |