CVE-2020-27352: Canonical Snapd

High severity, CVSS 8.8. EPSS: 0.3% chance of exploitation in the next 30 days.

When generating the systemd service units for the docker snap (and other similar snaps), snapd does not specify Delegate=yes - as a result systemd will move processes from the containers created and managed by these snaps into the cgroup of the main daemon within the snap itself when reloading system units. This may grant additional privileges to a container within the snap that were not originally intended.

Affected products

• Canonical Snapd: before 2.48.3 (fixed in 2.48.3)
• Canonical Ubuntu Linux: version 16.04 only; version 18.04 only; version 20.04 only; version 20.10 only

Published 2024-06-21. Last modified 2026-06-17.