CVE-2020-8570: Kubernetes Java

Critical severity, CVSS 9.1. EPSS: 3.6% chance of exploitation in the next 30 days.

Kubernetes Java client libraries in version 10.0.0 and versions prior to 9.0.1 allow writes to paths outside of the current directory when copying multiple files from a remote pod which sends a maliciously crafted archive. This can potentially overwrite any files on the system of the process executing the client code.

Affected products

• Kubernetes Java: before 9.0.2 (fixed in 9.0.2); from 10.0.0, before 10.0.1 (fixed in 10.0.1)

Published 2021-01-21. Last modified 2026-06-17.