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Fencer Vulns
medium 5.0

CVE-2019-11247 json

Kubernetes kube-apiserver allows access to custom resources via wrong scope

published 2019-08-29 7 y ago modified 2026-06-17 4 mo ago also GHSA-fp37-c92q-4pwq , EUVD-2022-3812

cvss
5.0
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.1%
EPSS 2.1% chance of exploitation in 30 days, percentile 82%
public exploits
0
none known

Summary

The Kubernetes kube-apiserver mistakenly allows access to a cluster-scoped custom resource if the request is made as if the resource were namespaced. Authorizations for the resource accessed in this manner are enforced using roles and role bindings within the namespace, meaning that a user with access only to a resource in one namespace could create, view update or delete the cluster-scoped resource (according to their namespace role privileges). Kubernetes affected versions include versions prior to 1.13.9, versions prior to 1.14.5, versions prior to 1.15.2, and versions 1.7, 1.8, 1.9, 1.10, 1.11, 1.12.

Patch / fix

  • go k8s.io/apiextensions-apiserver 0.13.9, 0.14.5, 0.15.2
  • kubernetes kubernetes 1.13.9, 1.14.5, 1.15.2
  • kubernetes Debian 14, Debian 13, Debian 12 1.17.4-1

debian advisories DEBIAN-CVE-2019-11247

  • cri-o openshift 3.9 1.9.16-3.git858756d.el7
  • cockpit openshift 3.9 195-2.rhaos.el7
  • heapster openshift 3.9 1.3.0-4.el7
  • cri-tools openshift 3.9 1.0.0-6.rhaos3.9.git8e6013a.el7
  • prometheus openshift 3.9 2.2.1-2.gitbc6058c.el7
  • image-inspector openshift 3.9 2.1.3-2.el7
  • atomic-openshift openshift 3.9 3.9.101-1.git.0.150f595.el7
  • prometheus-promu openshift 3.9 0-5.git85ceabc.el7

red hat advisories RHSA-2019:2769RHSA-2019:2690RHBA-2019:2816RHSA-2019:2504

  • k3s Alpine 3.24, Alpine 3.23, Alpine 3.22 +9 more 0.8.0-r0

alpine advisories ALPINE-CVE-2019-11247

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

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-2019-11247 updated cvss 5.0

kubernetes: API server allows access to cluster-scoped custom resources as if resources were namespaced

  • Red Hat OpenShift Container Platform 3.9 heapster 1.3.0-4.el7, cockpit 195-2.rhaos.el7, image-inspector 2.1.3-2.el7, cri-o 1.9.16-3.git858756d.el7, prometheus 2.2.1-2.gitbc6058c.el7, cockpit-kubernetes 195-2.rhaos.el7, +41 more
    fixed: vendor fix RHSA-2019:2769
  • Red Hat OpenShift Container Platform 3.10 atomic-openshift 3.10.170-1.git.0.8e592d6.el7, atomic-openshift-pod 3.10.170-1.git.0.8e592d6.el7, atomic-openshift-node 3.10.170-1.git.0.8e592d6.el7, atomic-openshift-tests 3.10.170-1.git.0.8e592d6.el7, atomic-openshift-master 3.10.170-1.git.0.8e592d6.el7, atomic-openshift-clients 3.10.170-1.git.0.8e592d6.el7, +7 more
    fixed: vendor fix RHSA-2019:2690
  • Red Hat OpenShift Container Platform 3.11 ansible-service-broker 1.3.23-2.el7, automation-broker-apb-role 1.3.23-2.el7, ansible-service-broker-selinux 1.3.23-2.el7, ansible-service-broker-container-scripts 1.3.23-2.el7
    fixed: vendor fix RHBA-2019:2816
  • Red Hat OpenShift Container Platform 4.1 openshift 4.1.10-201908060758.git.0.d81afa6.el7, openshift 4.1.10-201908060758.git.0.d81afa6.el8, openshift-clients 4.1.10-201908060758.git.0.d81afa6.el7, openshift-clients 4.1.10-201908060758.git.0.d81afa6.el8, openshift-hyperkube 4.1.10-201908060758.git.0.d81afa6.el7, openshift-hyperkube 4.1.10-201908060758.git.0.d81afa6.el8, +2 more
    fixed: vendor fix RHSA-2019:2504
  • Red Hat OpenShift Container Platform 3.11 kibana 5.6.16-2.el7, jenkins 2.176.3.1568230481-1.el7, python-elasticsearch 5.4.0-2.el7, jenkins-2-plugins 3.11.1567698330-1.el7, prometheus 3.11.146-1.git.1.0e18774.el7, atomic-openshift 3.11.146-1.git.0.4aab273.el7, +29 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

2.15% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 5.0 CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
NVD 3.1 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P
GitHub 3.1 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Affected packages

ecosystem package affected fixed in
go k8s.io/apiextensions-apiserver
>=0.7.0, <0.13.9
>=0.14.0, <0.14.5
>=0.15.0, <0.15.2
0.13.9
0.14.5
0.15.2

Affected products

  • Kubernetes Kubernetes

Classification

Weakness
  • CWE-20 Improper Input Validation
  • CWE-863 Incorrect Authorization
Technology feeds

References

Sources

Fencer Vulns 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.