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Resource allocation without limits in Kubernetes

Priority MEDIUM 46CWE-770Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 2 fixed, 6 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-770.

Summary

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.

Why it matters now

EPSS 0.16934 97th percentileScored 2026-11-07
Fix Partial Kubernetes (Kubernetes): v1.11.8, v1.12.6, v1.13.4k8s.io/kubernetes (Go): 1.11.8, 1.12.6, 1.13.4Red Hat: 2 advisoriesRed Hat: 2 fixed, 6 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
KubernetesKubernetesv1.0.x; v1.1.x; v1.2.x; v1.3.x; v1.4.x; v1.5.x; v1.6.x; v1.7.x; v1.8.x; v1.9.x; v1.10.x; before v1.11.8; before v1.12.6; before v1.13.4v1.11.8, v1.12.6, v1.13.4Patch availableCNA
—k8s.io/kubernetes (Go)1.0.0 – 1.10.14—No fix listedGHSA-q4rr-64r9-fwgf
—k8s.io/kubernetes (Go)1.11.0 to before 1.11.81.11.8Patch availableGHSA-q4rr-64r9-fwgf
—k8s.io/kubernetes (Go)1.12.0 to before 1.12.61.12.6Patch availableGHSA-q4rr-64r9-fwgf
—k8s.io/kubernetes (Go)1.13.0 to before 1.13.41.13.4Patch availableGHSA-q4rr-64r9-fwgf
  • Kubernetes VendorKubernetes Affected v1.0.x; v1.1.x; v1.2.x; v1.3.x; v1.4.x; v1.5.x; v1.6.x; v1.7.x; v1.8.x; v1.9.x; v1.10.x; before v1.11.8; before v1.12.6; before v1.13.4 Fixed in v1.11.8, v1.12.6, v1.13.4 Patch available CNA
  • k8s.io/kubernetes (Go) Vendor— Affected 1.0.0 – 1.10.14 Fixed in — No fix listed GHSA-q4rr-64r9-fwgf
  • k8s.io/kubernetes (Go) Vendor— Affected 1.11.0 to before 1.11.8 Fixed in 1.11.8 Patch available GHSA-q4rr-64r9-fwgf
  • k8s.io/kubernetes (Go) Vendor— Affected 1.12.0 to before 1.12.6 Fixed in 1.12.6 Patch available GHSA-q4rr-64r9-fwgf
  • k8s.io/kubernetes (Go) Vendor— Affected 1.13.0 to before 1.13.4 Fixed in 1.13.4 Patch available GHSA-q4rr-64r9-fwgf

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*before 1.11.8; 1.12.0 to before 1.12.6; 1.13.0 to before 1.13.4VulnerableKubernetes
cpe:2.3:a:redhat:openshift_container_platform:3.10:*:*:*:*:*:*:*3.10VulnerableRed Hat
cpe:2.3:a:redhat:openshift_container_platform:3.11:*:*:*:*:*:*:*3.11VulnerableRed Hat
  • cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:* Versions before 1.11.8; 1.12.0 to before 1.12.6; 1.13.0 to before 1.13.4 Vulnerable ·Kubernetes
  • cpe:2.3:a:redhat:openshift_container_platform:3.10:*:*:*:*:*:*:* Versions 3.10 Vulnerable ·Red Hat
  • cpe:2.3:a:redhat:openshift_container_platform:3.11:*:*:*:*:*:*:* Versions 3.11 Vulnerable ·Red Hat

Remediation

  • Fix · CNA Kubernetes (Kubernetes) Fixed in v1.11.8, v1.12.6, v1.13.4
  • Fix · GHSA-q4rr-64r9-fwgf k8s.io/kubernetes (Go) Fixed in 1.11.8 Advisory →
  • Fix · GHSA-q4rr-64r9-fwgf k8s.io/kubernetes (Go) Fixed in 1.12.6 Advisory →
  • Fix · GHSA-q4rr-64r9-fwgf k8s.io/kubernetes (Go) Fixed in 1.13.4 Advisory →

Red Hat 2 advisories

  • RHSA-2019:3239 Released 2019-10-29 · Red Hat rating Important
    OpenShift Container Platform 3.10 atomic-openshift security update
    • Red Hat OpenShift Container Platform 3.10 atomic-openshift-3.10.181-1.git.0.3ab4b3d.el7, atomic-openshift-clients-3.10.181-1.git.0.3ab4b3d.el7, atomic-openshift-clients-redistributable-3.10.181-1.git.0.3ab4b3d.el7 +10
  • RHSA-2019:1851 Released 2019-07-24 · Red Hat rating Moderate
    OpenShift Container Platform 3.11 security update
    • Red Hat OpenShift Container Platform 3.11 atomic-openshift-3.11.129-1.git.0.bd4f2d5.el7, atomic-openshift-clients-3.11.129-1.git.0.bd4f2d5.el7, atomic-openshift-clients-redistributable-3.11.129-1.git.0.bd4f2d5.el7 +11

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat OpenShift Container Platform 3.4AffectedNo fix planned: Will not fix
Red Hat OpenShift Container Platform 3.5AffectedNo fix planned: Will not fix
Red Hat OpenShift Container Platform 3.6AffectedNo fix planned: Out of support scope
Red Hat OpenShift Container Platform 3.7AffectedNo fix planned: Out of support scope
Red Hat OpenShift Container Platform 3.9AffectedNo fix yet: Fix deferred
Red Hat Storage 3AffectedNo fix planned: Will not fix
Red Hat OpenShift Container Platform 3.10Fixed RHSA-2019:3239
Red Hat OpenShift Container Platform 3.11Fixed RHSA-2019:1851
Not affected: 1 product
  • Red Hat OpenShift Container Platform 4

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-1002100
  2. 2026-10-03 Alias added: GHSA-q4rr-64r9-fwgf

References

  • TI-2018-16130 Improper privilege management in Kubernetes CVSS 3.0CRITICAL 9.8
  • TI-2019-08418 Kubernetes kubelet exposes /debug/pprof info on healthz port CVSS 3.1HIGH 8.2
  • TI-2023-05086 Kubernetes - Windows nodes - Insufficient input sanitization in in-tree storage plugin leads to privilege escalation CVSS 3.1HIGH 8.8
  • TI-2023-03433 Kubernetes - Windows nodes - Insufficient input sanitization leads to privilege escalation CVSS 3.1HIGH 8.8
  • TI-2023-02285 Bypass of seccomp profile enforcement CVSS 3.1MEDIUM 5.5
  • TI-2017-14755 Link following in Kubernetes CVSS 3.0CRITICAL 9.6
See all 55 →

Sources