CVE-2019-11247

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

HIGH
8.1
CVSS Score
Published: August 29, 2019 at 12:25 AM UTC
Updated: June 17, 2026 at 02:12 AM UTC
2 products affected across 2 vendorsOpenShift Container PlatformKubernetes

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Severity
HIGH8.1
Exploit prediction
EPSS 2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 1.13.9v < 1.14.5v < 1.15.21.13.0 ≤ v < 1.13.91.14.0 ≤ v < 1.14.51.15.0 ≤ v < 1.15.21.7.0 ≤ v ≤ 1.12.101.101.111.121.12.11 beta01.71.81.9
Affected range stops below 1.13.9, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.14.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.15.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (7)

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-2019:2690
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2019:2769

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-20CWE-863

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