CVE-2026-53489: Linuxfoundation Containerd

Medium severity, CVSS 6.5. EPSS: 0.2% chance of exploitation in the next 30 days.

containerd is an open-source container runtime. Versions prior to 2.3.2, 2.2.5 and 2.1.9 contain a bug where the CRI plugin restores container.log from a checkpoint image without validating a symlinked path. This could result in reading an arbitrary file on the host via kubectl logs. This issue has been fixed in versions 2.3.2, 2.2.5 and 2.1.9.

Affected products

• Linuxfoundation Containerd: from 2.1.0, before 2.1.9 (fixed in 2.1.9); from 2.2.0, before 2.2.5 (fixed in 2.2.5); from 2.3.0, before 2.3.2 (fixed in 2.3.2)

Published 2026-07-01. Last modified 2026-07-02.