CVE-2018-1000400: Kubernetes Cri-O

High severity, CVSS 8.8. EPSS: 2% chance of exploitation in the next 30 days.

Kubernetes CRI-O version prior to 1.9 contains a Privilege Context Switching Error (CWE-270) vulnerability in the handling of ambient capabilities that can result in containers running with elevated privileges, allowing users abilities they should not have. This attack appears to be exploitable via container execution. This vulnerability appears to have been fixed in 1.9.

Affected products

• Kubernetes Cri-O: before 1.9.0 (fixed in 1.9.0)

Published 2018-05-18. Last modified 2026-06-17.