CVE-2020-27348: Canonical Snapcraft

Medium severity, CVSS 6.8. EPSS: 0.7% chance of exploitation in the next 30 days.

In some conditions, a snap package built by snapcraft includes the current directory in LD_LIBRARY_PATH, allowing a malicious snap to gain code execution within the context of another snap if both plug the home interface or similar. This issue affects snapcraft versions prior to 4.4.4, prior to 2.43.1+16.04.1, and prior to 2.43.1+18.04.1.

Affected products

• Canonical Snapcraft: before 4.4.4 (fixed in 4.4.4)
• Canonical Ubuntu Linux: version 16.04 only; version 18.04 only

Published 2020-12-04. Last modified 2026-06-17.