CVE-2019-11253

HIGH NUCLEI

Kubernetes < 1.12.10 - XML Entity Expansion

Title source: rule

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.

Nuclei Templates (1)

Kubernetes API Server - YAML Parsing DoS (Billion Laughs)
HIGHby ritikchaddha
Shodan: http.favicon.hash:-847792508
FOFA: icon_hash="-847792508"

References (6)

Scores

CVSS v3 7.5
EPSS 0.8379
EPSS Percentile 99.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-776 CWE-20
Status published
Products (5)
k8s.io/kubernetes 1.0.0 - 1.13.12Go
kubernetes/kubernetes 1.1.0 - 1.12.10
redhat/openshift_container_platform 3.9
redhat/openshift_container_platform 3.10
redhat/openshift_container_platform 3.11
Published Oct 17, 2019
Tracked Since Feb 18, 2026