← CVE Radar
CVE-2026-122266Improper isolation of shared resources in aws-network-policy-agent in Amazon EKS
Improper isolation of shared resources in aws-network-policy-agent in Amazon EKS Network Policy Agent before 1.3.7 (VPC CNI before 1.22.3) might allow an authenticated adjacent user to bypass NetworkPolicy ingress enforcement on co-located pods via eBPF conntrack map poisoning using crafted AF_PACKET frames. To remediate this issue, users should upgrade to Amazon VPC CNI Managed Add-on v1.22.3 or later (which includes Network Policy Agent v1.3.7).
6.3 MEDIUMEPSS 0.27%Not in KEVNVD: Received
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 6.3 | MEDIUM | 4.0AMZN (CNA) | CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N |
| 8.7 | HIGH | 3.1AMZN (CNA) | CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N |
Details
- CVE ID
- CVE-2026-122266
- Status
- Received
- Assigner (CNA)
- AMZN
- Published
- Nov 4, 2026
- Last modified
- 2026-11-06 14:17 UTC
- Weaknesses
- CWE-1189 · Improper isolation of shared resources on System-on-a-Chip (SoC)
Affected Products
As published by the CNA in the CVE record.
AWSaws-network-policy-agent1 version range
- before 1.3.7
AWSamazon-vpc-cni-k8s1 version range
- before 1.22.3
References
- aws.amazon.com https://aws.amazon.com/security/security-bulletins/2026-170-aws/
- github.com https://github.com/aws/amazon-vpc-cni-k8s/releases/tag/v1.22.3
- github.com https://github.com/aws/amazon-vpc-cni-k8s/security/advisories/GHSA-rp3x-m95q-87mx
- github.com https://github.com/aws/aws-network-policy-agent/releases/tag/v1.3.7
- github.com https://github.com/aws/aws-network-policy-agent/security/advisories/GHSA-mm5f-ggvx-hmvw