CVE-2019-11247
Kubernetes kube-apiserver allows access to custom resources via wrong scope
- Published
- Updated
- Reserved
- Assigned by
- kubernetes
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| kubernetesCNA (assigner) | 3.0 | Medium5.0 | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L |
| NVDNVD · Modified | 3.1 | High8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
- EPSS (exploitation in 30 days)
- 2.1% · top 18% of all CVEs (6 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Weakness
Affected products
- affected prior to 1.13.9
- affected prior to 1.14.5
- affected prior to 1.15.2
- affected 1.7
- affected 1.8
- affected 1.9
- affected 1.10
- affected 1.11
- affected 1.12
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Gok8s.io/apiextensions-apiserverGHSA-fp37-c92q-4pwq (opens in a new tab)
What to do
Workaround: To mitigate, remove authorization rules that grant access to cluster-scoped resources within namespaces. For example, RBAC roles and clusterroles intended to be referenced by namespaced rolebindings should not grant access to resources:[*], apiGroups:[*], or grant access to cluster-scoped custom resources.
References (7)
- https://github.com/kubernetes/kubernetes/issues/80983 (opens in a new tab)x_refsource_CONFIRMx_transferred
- v1.13.9, v1.14.5, v1.15.2 released to address CVE-2019-11247, CVE-2019-11249 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- RHSA-2019:2690 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://security.netapp.com/advisory/ntap-20190919-0003/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHBA-2019:2816 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHBA-2019:2824 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:2769 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-fp37-c92q-4pwq (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2019-11247)Record last updated .