Read the docs
TI-2020-06852 Aliases CVE-2020-8552GHSA-82hx-w2r5-c2wq

Kubernetes API server denial of service

Priority LOW 29CWE-789Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Low
Fix status
Partial Red Hat: 4 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-789.

Summary

The Kubernetes API server component in versions prior to 1.15.9, 1.16.0-1.16.6, and 1.17.0-1.17.2 has been found to be vulnerable to a denial of service attack via successful API requests.

Why it matters now

EPSS 0.02845 86th percentileScored 2026-11-07
Fix Partial Kubernetes (Kubernetes): v1.17.3, v1.16.7, v1.15.10k8s.io/apiserver (Go): 0.15.10, 0.16.7, 0.17.3Red Hat: 5 advisoriesRed Hat: 4 fixed, 1 without a fix

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
KubernetesKubernetesbefore v1.17.3; before v1.16.7; before v1.15.10v1.17.3, v1.16.7, v1.15.10Patch availableCNA
—k8s.io/apiserver (Go)before 0.15.100.15.10Patch availableGHSA-82hx-w2r5-c2wq
—k8s.io/apiserver (Go)0.16.0 to before 0.16.70.16.7Patch availableGHSA-82hx-w2r5-c2wq
—k8s.io/apiserver (Go)0.17.0 to before 0.17.30.17.3Patch availableGHSA-82hx-w2r5-c2wq
  • Kubernetes VendorKubernetes Affected before v1.17.3; before v1.16.7; before v1.15.10 Fixed in v1.17.3, v1.16.7, v1.15.10 Patch available CNA
  • k8s.io/apiserver (Go) Vendor— Affected before 0.15.10 Fixed in 0.15.10 Patch available GHSA-82hx-w2r5-c2wq
  • k8s.io/apiserver (Go) Vendor— Affected 0.16.0 to before 0.16.7 Fixed in 0.16.7 Patch available GHSA-82hx-w2r5-c2wq
  • k8s.io/apiserver (Go) Vendor— Affected 0.17.0 to before 0.17.3 Fixed in 0.17.3 Patch available GHSA-82hx-w2r5-c2wq

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*up to 1.15.9; 1.16.0 – 1.16.6; 1.17.0 – 1.17.2VulnerableKubernetes
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*32VulnerableFedoraproject
  • cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:* Versions up to 1.15.9; 1.16.0 – 1.16.6; 1.17.0 – 1.17.2 Vulnerable ·Kubernetes
  • cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* Versions 32 Vulnerable ·Fedoraproject

Remediation

  • Fix · CNA Kubernetes (Kubernetes) Fixed in v1.17.3, v1.16.7, v1.15.10
  • Fix · GHSA-82hx-w2r5-c2wq k8s.io/apiserver (Go) Fixed in 0.15.10 Advisory →
  • Fix · GHSA-82hx-w2r5-c2wq k8s.io/apiserver (Go) Fixed in 0.16.7 Advisory →
  • Fix · GHSA-82hx-w2r5-c2wq k8s.io/apiserver (Go) Fixed in 0.17.3 Advisory →

Red Hat 5 advisories

  • RHSA-2020:2992 Released 2020-07-27 · Red Hat rating Moderate
    OpenShift Container Platform 3.11 security update
    • Red Hat OpenShift Container Platform 3.11 atomic-openshift-3.11.248-1.git.0.92ee8ac.el7, atomic-openshift-clients-3.11.248-1.git.0.92ee8ac.el7, atomic-openshift-clients-redistributable-3.11.248-1.git.0.92ee8ac.el7 +12
  • RHSA-2020:2306 Released 2020-06-03 · Red Hat rating Moderate
    OpenShift Container Platform 4.2.34 ose-openshift-apiserver-container security update
    • Red Hat OpenShift Container Platform 4.2 openshift4/ose-openshift-apiserver-rhel7
  • RHSA-2020:1526 Released 2020-04-22 · Red Hat rating Moderate
    OpenShift Container Platform 4.2.29 openshift-enterprise-hyperkube-container security update
    • Red Hat OpenShift Container Platform 4.2 openshift4/ose-hyperkube
Show 2 more Red Hat advisories
  • RHSA-2020:1527 Released 2020-04-22 · Red Hat rating Moderate
    OpenShift Container Platform 4.2.29 openshift security update
    • Red Hat OpenShift Container Platform 4.2 openshift-4.2.29-202004110432.git.0.f7d02c8.el8, openshift-4.2.29-202004120346.git.0.d948116.el7, openshift-hyperkube-4.2.29-202004110432.git.0.f7d02c8.el8 +1
  • RHSA-2020:0933 Released 2020-04-01 · Red Hat rating Moderate
    OpenShift Container Platform 4.3.9 ose-openshift-apiserver-container security update
    • Red Hat OpenShift Container Platform 4.3 openshift4/ose-openshift-apiserver-rhel7

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Kubernetes v1.15.10, v1.16.7, v1.17.3

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2020-06851 Kubernetes kubelet denial of servicePriority LOW 31
    Show all 2 records →

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat OpenShift Container Platform 4AffectedNo fix planned: Will not fix
Red Hat OpenShift Container Platform 3.11Fixed RHSA-2020:2992
Red Hat OpenShift Container Platform 4.2Fixed RHSA-2020:1526, RHSA-2020:1527, RHSA-2020:2306
Red Hat OpenShift Container Platform 4.3Fixed RHSA-2020:0933
Red Hat OpenShift Container Platform 4.4Fixed—
Not affected: 3 products
  • Red Hat OpenShift Container Platform 3.11
  • Red Hat OpenShift Container Platform 4.3
  • Red Hat Storage 3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-8552
  2. 2026-10-03 Alias added: GHSA-82hx-w2r5-c2wq
  3. 2026-10-30 Fix available: Red Hat OpenShift Container Platform 4.4 · Red Hat

References

Patch 1

Advisory 3

Other 6

  • 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

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences