CVE-2019-11251: Kubernetes

Medium severity, CVSS 5.7. EPSS: 2.6% chance of exploitation in the next 30 days.

The Kubernetes kubectl cp command in versions 1.1-1.12, and versions prior to 1.13.11, 1.14.7, and 1.15.4 allows a combination of two symlinks provided by tar output of a malicious container to place a file outside of the destination directory specified in the kubectl cp invocation. This could be used to allow an attacker to place a nefarious file using a symlink, outside of the destination tree.

Affected products

• Kubernetes Kubernetes: from 1.13.0, before 1.13.11 (fixed in 1.13.11); from 1.14.0, before 1.14.7 (fixed in 1.14.7); from 1.15.0, before 1.15.4 (fixed in 1.15.4); version 1.1-1.12 only

Published 2020-02-03. Last modified 2026-06-17.