title: Holes in EndpointSlice Validation Enable Host Network Hijack
description: A security issue was discovered with Kubernetes that could enable users to send network traffic to locations they would otherwise not have access to via a confused deputy attack.
problem types: CWE-441 Unintended Proxy or Intermediary
affected:
{
product: Kubernetes
vendor: Kubernetes
versions:
lessThanOrEqual: 1.20.11, status: affected, version: unspecified, versionType: custom
lessThan: unspecified, status: unknown, version: next of 1.20.11, versionType: custom
lessThanOrEqual: 1.21.5, status: affected, version: unspecified, versionType: custom
lessThan: unspecified, status: unknown, version: next of 1.21.5, versionType: custom
lessThanOrEqual: 1.22.2, status: affected, version: unspecified, versionType: custom
lessThan: unspecified, status: unknown, version: next of 1.22.2, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: HIGH
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 3.1
baseSeverity: LOW
confidentialityImpact: LOW
integrityImpact: NONE
privilegesRequired: LOW
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
version: 3.1
]