CVE-2021-25741: Kubernetes

High severity, CVSS 8.1. EPSS: 8% chance of exploitation in the next 30 days.

A security issue was discovered in Kubernetes where a user may be able to create a container with subpath volume mounts to access files & directories outside of the volume, including on the host filesystem.

Affected products

• Kubernetes Kubernetes: up to and including 1.19.14; from 1.20.0, up to and including 1.20.10; from 1.21.0, up to and including 1.21.4; from 1.22.0, up to and including 1.22.1

Published 2021-09-20. Last modified 2026-06-17.