CVE-2019-11253CWE-20

Kubernetes API Server JSON/YAML parsing vulnerable to resource exhaustion attack

High · published October 17, 2019

CVSS v3.1
7.5
EPSS
26%
Percentile
98.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.25939 · 98.0th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2019-10-17T15:40Z
EPSS history
Timeline
  • 17 OCT 15:40Z
    Kubernetes API Server JSON/YAML parsing vulnerable to resource exhaustion attack
    cvelistv5