CVE-2023-28642: Linuxfoundation Runc

High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days.

runc is a CLI tool for spawning and running containers according to the OCI specification. It was found that AppArmor can be bypassed when `/proc` inside the container is symlinked with a specific mount configuration. This issue has been fixed in runc version 1.1.5, by prohibiting symlinked `/proc`. See PR #3785 for details. users are advised to upgrade. Users unable to upgrade should avoid using an untrusted container image.

Affected products

• Linuxfoundation Runc: before 1.1.5 (fixed in 1.1.5)

Published 2023-03-29. Last modified 2026-06-17.