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Public proof of conceptFix available

CVE-2019-1002101

A public proof of concept exists; no exploitation attested.

  • Published2019-04-01
  • Fixed in1.13.5 · 1.12.7 · 1.11.9
  • WeaknessCWE-59

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC
  1. 2019-04-0114:29CVE publishedNVD
  2. 2026-10-2319:23First public proof of conceptPoC-in-GitHub
  3. 2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2019-1002101?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-1002101?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV
Kubernetes
BranchAffectedFixed in
1.13≥ 1.13.0, < 1.13.51.13.5
1.12≥ 1.12.0, < 1.12.71.12.7
1.11≥ 1.11.0, < 1.11.91.11.9
1.11< 1.11.91.11.9
1.14= 1.14.0no fix published
Redhat openshift container platform
BranchAffectedFixed in
3.9= 3.9no fix published
3.10= 3.10no fix published
3.11= 3.11no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update Kubernetes to 1.13.5 · 1.12.7 · 1.11.9

Advisories and patches

Detection

read 2026-10-23 19:23 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
1 repository, unverifiedbrompwnie/CVE-2019-1002101-Helpers
PoC-in-GitHub

Sources

  • CNACVSS 3.06.4read 2026-10-23
  • NVDCVSS 3.05.5read 2026-10-23
  • NVDCVSS 2.05.8read 2026-10-23
  • NVDweakness (CWE)CWE-59read 2026-10-23
  • FIRST EPSSEPSS score12.8 %read 2026-10-23
  • PoC-in-GitHubproof of concept1read 2026-10-23
  • OSVaffected packages—

Technical details

CVSS v3 Vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Published
2019-04-01
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2019-1002101?

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.

Is CVE-2019-1002101 actively exploited?

Active exploitation of CVE-2019-1002101 has not been confirmed. Its EPSS score was 12.8% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-1002101?

CVE-2019-1002101 has a CVSS v3 base score of 5.5 (MEDIUM severity), with vector string CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.

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