{"id":"CVE-2026-122266","published":"2026-11-04T22:17:56.383","lastModified":"2026-11-04T22:17:56.383","description":"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.\n\n\n\nTo 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).","cvssScore":8.7,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","cwes":["CWE-1189"],"vendors":[],"products":[],"references":[{"url":"https://aws.amazon.com/security/security-bulletins/2026-170-aws/","tags":[]},{"url":"https://github.com/aws/amazon-vpc-cni-k8s/releases/tag/v1.22.3","tags":[]},{"url":"https://github.com/aws/aws-network-policy-agent/releases/tag/v1.3.7","tags":[]},{"url":"https://github.com/aws/aws-network-policy-agent/security/advisories/GHSA-mm5f-ggvx-hmvw","tags":[]}],"exploitRefs":[{"url":"https://github.com/aws/amazon-vpc-cni-k8s/releases/tag/v1.22.3","tags":[]},{"url":"https://github.com/aws/aws-network-policy-agent/releases/tag/v1.3.7","tags":[]},{"url":"https://github.com/aws/aws-network-policy-agent/security/advisories/GHSA-mm5f-ggvx-hmvw","tags":[]}],"hasPoc":true,"ai":null}