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CVE-2019-11254

Kubernetes API Server denial of service vulnerability from malicious YAML payloads

MEDIUM
6.5
CVSS Score
Published: April 1, 2020 at 08:30 PM UTC
Updated: June 17, 2026 at 02:12 AM UTC
1 product affected across 1 vendorKubernetes

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Severity
MEDIUM6.5
Exploit prediction
EPSS 3%

Description

The Kubernetes API Server component in versions 1.1-1.14, and versions prior to 1.15.10, 1.16.7 and 1.17.3 allows an authorized user who sends malicious YAML payloads to cause the kube-apiserver to consume excessive CPU cycles while parsing YAML.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Kubernetes· Kubernetes
95%
v < 1.15.10v < 1.16.7v < 1.17.31.16.0 ≤ v < 1.16.71.17.0 ≤ v < 1.17.31.11.101.111.121.131.141.21.31.41.51.61.71.81.9
Affected range stops below 1.15.10, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.16.7, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.17.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (3)

x_refsource_MISCThird Party Advisory
Source: [email protected]
https://github.com/kubernetes/kubernetes/issues/89535
x_refsource_MISCThird Party Advisory
Source: [email protected]
https://groups.google.com/d/msg/kubernetes-announce/ALL9s73E5ck/4yHe8J-PBAAJ
x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20200413-0003/

CVSS

6.5MEDIUMkubernetes
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-1050NVD-CWE-Other

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