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Medium, CVSS 6.5

Kubernetes DoS Vulnerability

CVE-2019-1002100GHSA-q4rr-64r9-fwgf

What to do

Partial vendor fix. Follow the primary source's mitigation guidance and check back for a fix.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

  • Go k8s.io/kubernetes

    Affected
    >= 1.11.0, <= 1.11.7>= 1.12.0, <= 1.12.5>= 1.13.0, <= 1.13.3>= 1.0.0, <= 1.10.14
    Fixed in
    1.13.4, 1.11.8, 1.12.6

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
6.5 · CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
  • CVE-2019-1002100: 16.93% estimated exploitation activity in the next 30 days; percentile 97.06 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

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.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 1 · created ·

    Published from ghsa record GHSA-q4rr-64r9-fwgf

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2019-1002100

Advisory: Kubernetes DoS Vulnerability
IDs: CVE-2019-1002100, GHSA-q4rr-64r9-fwgf
Record: https://patchnext.com/advisories/cve-2019-1002100 (revision 1, source checked 26 Oct 2026, 15:14 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 6.5)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Partial vendor fix; fixed versions by package: k8s.io/kubernetes 1.13.4, 1.12.6, 1.11.8. A vendor fix does not mean a deployment is fixed.

## Affected components
- Go k8s.io/kubernetes: affected >= 1.11.0, <= 1.11.7; >= 1.12.0, <= 1.12.5; >= 1.13.0, <= 1.13.3; >= 1.0.0, <= 1.10.14; fixed in 1.13.4, 1.11.8, 1.12.6

## Suggested inspection (read-only)
- Go k8s.io/kubernetes: check the installed version with your package manager.

## Supported action
No complete vendor fix is recorded. Follow the primary source's mitigation guidance and check this record again before closing anything.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on k8s.io/kubernetes.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-q4rr-64r9-fwgf (GitHub-reviewed advisory GHSA-q4rr-64r9-fwgf lists affected ranges: Go k8s.io/kubernetes >=1.11.0 =1.12.0 =1.13.0 =1.0.0 <=1.10.14)

Commands are suggestions: review each one before running it.

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