kubectl cp allows symlink directory traversal
Published Aug 29, 2019
6.5
MEDIUMCVSS 3.1
EPSS 3.75%
Description
The kubectl cp command allows copying files between containers and the user machine. To copy files from a container, Kubernetes runs tar inside the container to create a tar archive, 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. Kubernetes affected versions include versions prior to 1.13.9, versions prior to 1.14.5, versions prior to 1.15.2, and versions 1.1, 1.2, 1.4, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 1.10, 1.11, 1.12.
Affected products
-
- Version 1.1StatusaffectedConstraints-
- Version 1.10StatusaffectedConstraints-
- Version 1.11StatusaffectedConstraints-
- Version 1.12StatusaffectedConstraints-
- Version 1.2StatusaffectedConstraints-
- Version 1.4StatusaffectedConstraints-
- Version 1.5StatusaffectedConstraints-
- Version 1.6StatusaffectedConstraints-
- Version 1.7StatusaffectedConstraints-
- Version 1.8StatusaffectedConstraints-
- Version 1.9StatusaffectedConstraints-
- Version prior to 1.13.9StatusaffectedConstraints-
- Version prior to 1.14.5StatusaffectedConstraints-
- Version prior to 1.15.2StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Kubernetes | Kubernetes | n/a |
|
Configuration 1
- ≥ 1.0.0 · ≤ 1.12.10
- ≥ 1.13.0 · < 1.13.9
- ≥ 1.14.0 · < 1.14.5
- ≥ 1.15.0 · < 1.15.2
- 1.12.11
Configuration 2
- 3.9
- 3.10
- 3.11
- 4.1
No data.
Red Hat OpenShift Container Platform 3.10
atomic-openshift-0:3.10.181-1.git.0.3ab4b3d.el7
Fixed · RHSA-2019:3239
Red Hat OpenShift Container Platform 3.11
ansible-service-broker-1:1.3.23-2.el7
Fixed · RHBA-2019:2816
Red Hat OpenShift Container Platform 3.9
atomic-openshift-0:3.9.102-1.git.0.6411f52.el7
Fixed · RHSA-2019:3811
Red Hat OpenShift Container Platform 4.1
atomic-enterprise-service-catalog-1:4.1.16-201909090609.git.1.cc4acc1.el7
Fixed · RHBA-2019:2794
Red Hat OpenShift Container Platform 4.1
jenkins-2-plugins-0:4.1.1567784275-1.el7
Fixed · RHBA-2019:2794
Red Hat OpenShift Container Platform 4.1
openshift-0:4.1.16-201909090609.git.0.2f97059.el7
Fixed · RHBA-2019:2794
Red Hat OpenShift Container Platform 4.1
openshift-ansible-0:4.1.16-201909090609.git.162.a0800db.el7
Fixed · RHBA-2019:2794
Red Hat Storage 3
heketi
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat OpenShift Container Platform 3.10 | atomic-openshift-0:3.10.181-1.git.0.3ab4b3d.el7 | Fixed | RHSA-2019:3239 |
| Red Hat OpenShift Container Platform 3.11 | ansible-service-broker-1:1.3.23-2.el7 | Fixed | RHBA-2019:2816 |
| Red Hat OpenShift Container Platform 3.9 | atomic-openshift-0:3.9.102-1.git.0.6411f52.el7 | Fixed | RHSA-2019:3811 |
| Red Hat OpenShift Container Platform 4.1 | atomic-enterprise-service-catalog-1:4.1.16-201909090609.git.1.cc4acc1.el7 | Fixed | RHBA-2019:2794 |
| Red Hat OpenShift Container Platform 4.1 | jenkins-2-plugins-0:4.1.1567784275-1.el7 | Fixed | RHBA-2019:2794 |
| Red Hat OpenShift Container Platform 4.1 | openshift-0:4.1.16-201909090609.git.0.2f97059.el7 | Fixed | RHBA-2019:2794 |
| Red Hat OpenShift Container Platform 4.1 | openshift-ansible-0:4.1.16-201909090609.git.162.a0800db.el7 | Fixed | RHBA-2019:2794 |
| Red Hat Storage 3 | heketi | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N
AV:N/AC:M/Au:N/C:N/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (31 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 3.75% (0.03749) | 89.54th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.73% (0.03732) | 88.38th | v5 (v2026.06.15) |
| Jun 12, 2026 | 2.10% (0.02095) | 84.46th | v4 (v2025.03.14) |
| Mar 4, 2026 | 3.52% (0.03519) | 87.41th | v4 (v2025.03.14) |
| Mar 1, 2026 | 5.37% (0.05368) | 89.96th | v4 (v2025.03.14) |
| Feb 4, 2026 | 3.52% (0.03519) | 87.34th | v4 (v2025.03.14) |
| Feb 1, 2026 | 5.37% (0.05368) | 89.90th | v4 (v2025.03.14) |
| Jan 4, 2026 | 3.52% (0.03519) | 87.28th | v4 (v2025.03.14) |
| Jan 1, 2026 | 5.37% (0.05368) | 89.86th | v4 (v2025.03.14) |
| Dec 4, 2025 | 2.95% (0.02951) | 86.00th | v4 (v2025.03.14) |
| Dec 1, 2025 | 4.52% (0.04520) | 88.77th | v4 (v2025.03.14) |
| Nov 21, 2025 | 2.95% (0.02951) | 85.96th | v4 (v2025.03.14) |
| Nov 18, 2025 | 1.83% (0.01832) | 81.43th | v4 (v2025.03.14) |
| Nov 4, 2025 | 2.95% (0.02951) | 85.94th | v4 (v2025.03.14) |
| Nov 1, 2025 | 4.52% (0.04520) | 88.68th | v4 (v2025.03.14) |
| Oct 1, 2025 | 3.33% (0.03331) | 86.84th | v4 (v2025.03.14) |
| Sep 13, 2025 | 1.92% (0.01924) | 82.69th | v4 (v2025.03.14) |
| Mar 30, 2025 | 3.13% (0.03130) | 85.68th | v4 (v2025.03.14) |
| Mar 29, 2025 | 29.45% (0.29446) | 94.64th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.71% (0.02711) | 84.93th | v4 (v2025.03.14) |
| Jul 20, 2024 | 0.18% (0.00185) | 56.14th | v3 (v2023.03.01) |
| Dec 22, 2023 | 0.18% (0.00185) | 55.76th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.26% (0.00262) | 63.18th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.16% (0.00162) | 50.99th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.18% (0.01183) | 61.76th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.18% (0.01183) | 58.77th | v2 (v2022.01.01) |
| Feb 4, 2022 | 11.69% (0.11687) | 88.96th | v2 (v2022.01.01) |
| Feb 3, 2022 | 4.33% (0.04329) | 74.67th | v5 (v2026.06.15) |
| Jan 6, 2022 | 4.33% (0.04329) | 74.46th | v1 |
| Sep 1, 2021 | 1.00% (0.00999) | 61.84th | v1 |
| Apr 14, 2021 | 1.00% (0.00999) | 0.00th | v1 |
References (13)
- https://access.redhat.com/errata/RHBA-2019:2794 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHBA-2019:2816 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHBA-2019:2824 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3239 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3811 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2019-11249 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1737651 Issue Tracking
- https://github.com/kubernetes/kubernetes/issues/80984 x_refsource_CONFIRMPatchThird Party Advisory
- https://groups.google.com/d/msg/kubernetes-security-announce/vUtEcSEY6SM/v2ZZxsmtFQAJ mailing-listx_refsource_MLISTPatchThird Party Advisory
- https://groups.google.com/forum/#!topic/kubernetes-security-discuss/Vf31dXp0EJc
- https://nvd.nist.gov/vuln/detail/CVE-2019-11249
- https://security.netapp.com/advisory/ntap-20190919-0003/ x_refsource_CONFIRMThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2019-11249
Change history (0)
No recorded changes yet.