CVE-2019-11253

7.5 HIGH
Published: October 17, 2019 Modified: February 24, 2026
View on NVD

Description

Improper input validation in the Kubernetes API server in versions v1.0-1.12 and versions prior to v1.13.12, v1.14.8, v1.15.5, and v1.16.2 allows authorized users to send malicious YAML or JSON payloads, causing the API server to consume excessive CPU or memory, potentially crashing and becoming unavailable. Prior to v1.14.0, default RBAC policy authorized anonymous users to submit requests that could trigger this vulnerability. Clusters upgraded from a version prior to v1.14.0 keep the more permissive policy by default for backwards compatibility.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3239
Source: jordan@liggitt.net
Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3811
Source: jordan@liggitt.net
Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3905
Source: jordan@liggitt.net
Third Party Advisory
https://github.com/kubernetes/kubernetes/issues/83253
Source: jordan@liggitt.net
Exploit Issue Tracking Mitigation Third Party Advisory
https://security.netapp.com/advisory/ntap-20191031-0006/
Source: jordan@liggitt.net
Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3239
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3811
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3905
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://github.com/kubernetes/kubernetes/issues/83253
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Issue Tracking Mitigation Third Party Advisory
https://groups.google.com/forum/#%21topic/kubernetes-security-announce/jk8polzSUxs
Source: af854a3a-2127-422b-91ae-364da2661108
Permissions Required
https://security.netapp.com/advisory/ntap-20191031-0006/
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

12 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
83.8%
99th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

kubernetes redhat