Skip to content
Fencer Intel
medium 6.4

CVE-2019-1002101 json

kubectl cp path traversal

published 7y ago modified last mo. also GHSA-34jx-wx69-9x8v , GO-2022-0782 , EUVD-2022-0775

cvss
6.4
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
12.8%
EPSS 12.8% chance of exploitation in 30 days, percentile 96%
public exploits
0
none known

Summary

The kubectl cp command allows copying files between containers and the user machine. To copy files from a container, Kubernetes creates a tar inside the container, copies it over the network, and kubectl unpacks it on the user’s machine. If the tar binary in the container is malicious, it could run any code and output unexpected, malicious results. An attacker could use this to write files to any path on the user’s machine when kubectl cp is called, limited only by the system permissions of the local user. The untar function can both create and follow symbolic links. The issue is resolved in kubectl v1.11.9, v1.12.7, v1.13.5, and v1.14.0.

Patch / fix

  • go k8s.io/kubernetes 1.11.9, 1.12.7, 1.13.5
  • Kubernetes Kubernetes 1.11.9, 1.12.7, 1.13.5
  • cri-o openshift 3.9 1.9.16-1.git78b2041.el7
  • atomic-openshift openshift 3.9 3.9.74-1.git.0.78e56ea.el7
  • openshift-ansible openshift 3.9 3.9.74-1.git.0.70a0a63.el7
  • atomic-openshift-pod openshift 3.9 3.9.74-1.git.0.78e56ea.el7
  • atomic-openshift-node openshift 3.9 3.9.74-1.git.0.78e56ea.el7
  • ansible-service-broker openshift 3.9 1.1.20-1.el7
  • atomic-openshift-tests openshift 3.9 3.9.74-1.git.0.78e56ea.el7
  • atomic-openshift-utils openshift 3.9 3.9.74-1.git.0.70a0a63.el7

red hat advisories RHBA-2019:0619RHBA-2019:0620RHBA-2019:0636

  • govulncheck-vulndb openSUSE Tumbleweed 0.0.20250807T150727-1.1
  • k3s openSUSE Tumbleweed 1.21.3+k3s1-1.2

opensuse advisories openSUSE-SU-2025:15424-1openSUSE-SU-2024:10884-1

Is CVE-2019-1002101 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-1002101 updated cvss 5.3

kubernetes: Mishandling of symlinks allows for arbitrary file write via `kubectl cp`

  • Red Hat OpenShift Container Platform 3.9 cri-o 1.9.16-1.git78b2041.el7, ansible-service-broker 1.1.20-1.el7, ansible-service-broker-selinux 1.1.20-1.el7, atomic-openshift 3.9.74-1.git.0.78e56ea.el7, openshift-ansible 3.9.74-1.git.0.70a0a63.el7, atomic-openshift-pod 3.9.74-1.git.0.78e56ea.el7, +20 more
    fixed: vendor fix RHBA-2019:0619
  • Red Hat OpenShift Container Platform 3.10 python-libcloud 2.2.1-20180102gitd701bf9.el7, atomic-openshift 3.10.127-1.git.0.dab74c6.el7, openshift-ansible 3.10.127-1.git.0.131da09.el7, atomic-openshift-pod 3.10.127-1.git.0.dab74c6.el7, atomic-openshift-node 3.10.127-1.git.0.dab74c6.el7, rubygem-fluent-plugin-viaq_data_model 0.0.18-1.el7, +21 more
    fixed: vendor fix RHBA-2019:0620
  • Red Hat OpenShift Container Platform 3.11 python-docker 2.4.2-2.el7, python-certifi 2018.4.16-2.el7, python2-certifi 2018.4.16-2.el7, prometheus 3.11.98-1.git.0.61907ad.el7, atomic-openshift 3.11.98-1.git.0.0cbaff3.el7, python-libcloud 2.2.1-20180102gitd701bf9.el7, +34 more
    fixed: vendor fix RHBA-2019:0636
  • Red Hat OpenShift Container Platform 3.4 atomic-openshift, atomic-openshift-pod, atomic-openshift-node, atomic-openshift-tests, atomic-openshift-master, atomic-openshift-clients, +6 more Red Hat OpenShift Container Platform 3.5 atomic-openshift, atomic-openshift-pod, atomic-openshift-node, atomic-openshift-tests, atomic-openshift-master, atomic-openshift-clients, +6 more Red Hat OpenShift Container Platform 3.6 atomic-openshift, atomic-openshift-pod, atomic-openshift-node, atomic-openshift-tests, atomic-openshift-master, atomic-openshift-clients, +9 more Red Hat OpenShift Container Platform 3.7 atomic-openshift, atomic-openshift-pod, atomic-openshift-node, atomic-openshift-tests, atomic-openshift-master, atomic-openshift-clients, +10 more Red Hat OpenShift Container Platform 4 openshift, openshift-clients, openshift-kubelet, openshift-hyperkube, openshift-kube-apiserver, openshift-kube-scheduler, +2 more Red Hat Storage 3 heketi, heketi-client, python-heketi
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

12.80% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.0 6.4 CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
NVD 3.0 5.5 CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
NVD 2.0 5.8 AV:N/AC:M/Au:N/C:N/I:P/A:P
GitHub 3.0 5.5 CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Affected packages

ecosystem package affected fixed in
go k8s.io/kubernetes
<1.11.9
>=1.12.0, <1.12.7
>=1.13.0, <1.13.5
1.11.9
1.12.7
1.13.5

Affected products

  • Kubernetes Kubernetes

Classification

Weakness
  • CWE-59 Improper Link Resolution Before File Access
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.