CVE-2026-122266
HighCVSS 8.7Exploitation Probability (EPSS)
Low risk18th percentile - higher than 18% of all known CVEs
Summary
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.
Risk Assessment
An authenticated user in the cluster may bypass network policies and gain unauthorized access to co-located pods.
Recommendation
Upgrade the Amazon VPC CNI Managed Add-on to version 1.22.3 or later (which includes Network Policy Agent 1.3.7).
Other vulnerabilities in Amazon EKS Network Policy Agent
Original NVD description (English source)
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).
Vulnerability data from NVD (NIST) · CISA KEV · EPSS