What’s Vulnerable › Vulnerabilities

CVE-2019-1002100

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 16.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-04-01 · updated 2026-06-17
• Weakness: CWE-770

Description

In all Kubernetes versions prior to v1.11.8, v1.12.6, and v1.13.4, users that are authorized to make patch requests to the Kubernetes API Server can send a specially crafted patch of type "json-patch" (e.g. `kubectl patch --type json` or `"Content-Type: application/json-patch+json"`) that consumes excessive resources while processing, causing a Denial of Service on the API Server.

Affected products

• Kubernetes: before 1.11.8; from 1.12.0 before 1.12.6; from 1.13.0 before 1.13.4 — fixed in 1.11.8, 1.12.6, 1.13.4
• Red Hat OpenShift Container Platform 4.18: 3.10, 3.11

How to fix

Upgrade to a fixed version: Kubernetes 1.11.8, 1.12.6, 1.13.4. Check the vendor advisory for mitigations.

References

• http://www.securityfocus.com/bid/107290
• https://access.redhat.com/errata/RHSA-2019:1851
• https://access.redhat.com/errata/RHSA-2019:3239
• https://github.com/kubernetes/kubernetes/issues/74534
• https://groups.google.com/forum/#%21topic/kubernetes-announce/vmUUNkYfG9g
• https://security.netapp.com/advisory/ntap-20190416-0002/
• http://www.securityfocus.com/bid/107290
• https://access.redhat.com/errata/RHSA-2019:1851
• https://access.redhat.com/errata/RHSA-2019:3239
• https://github.com/kubernetes/kubernetes/issues/74534
• https://groups.google.com/forum/#%21topic/kubernetes-announce/vmUUNkYfG9g
• https://security.netapp.com/advisory/ntap-20190416-0002/

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