Improper validation of pod identifier uniqueness in aws-network-policy-agent in Amazon EKS
Improper validation of pod identifier uniqueness in aws-network-policy-agent in Amazon EKS Network Policy Agent before v1.4.0 might allow an authenticated remote user to bypass NetworkPolicy enforcement on co-located pods in other namespaces via crafted pod and namespace names that produce pod identifier collisions. To remediate this issue, users should upgrade to Amazon EKS Network Policy Agent 1.4.0 or later and Amazon VPC CNI Managed Add-on v1.22.4 or later (which includes Network Policy Agent v1.4.0).
CVE-2026-86831
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-86831
aws-network-policy-agent
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
amazon-vpc-cni-k8s
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "AWS",
"product": "aws-network-policy-agent",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "1.4.0",
"versionType": "custom"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "AWS",
"product": "amazon-vpc-cni-k8s",
"versions": [
{
"status": "affected",
"version": "1.14.0",
"lessThan": "1.22.4",
"versionType": "custom"
}
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-86831
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #42486 · Revision 1
- Added to Heist Feed
- Publisher date