CVE-2026-122266

HighCVSS 8.7

Published: 04/11/2026(UTC)Translated: 04/11/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.26%

18th percentile - higher than 18% of all known CVEs

Summary

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

CVE-2026-86831High
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.

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