CVE-2023-1326: Canonical Apport

High severity, CVSS 7.8. EPSS: 0.9% chance of exploitation in the next 30 days.

A privilege escalation attack was found in apport-cli 2.26.0 and earlier which is similar to CVE-2023-26604. If a system is specially configured to allow unprivileged users to run sudo apport-cli, less is configured as the pager, and the terminal size can be set: a local attacker can escalate privilege. It is extremely unlikely that a system administrator would configure sudo to allow unprivileged users to perform this class of exploit.

Affected products

• Canonical Apport: up to and including 2.26.0
• Canonical Ubuntu Linux: version 18.04 only; version 20.04 only; version 22.04 only; version 22.10 only

Published 2023-04-13. Last modified 2026-06-17.