RewindexCVEsAmazon Web Services
CVE-2026-122266: Improper isolation of shared resources in aws-network-policy-agent in Amazon EKS
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. 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).
Vector CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N · CWE-1189
Tracked companies
Mapped from the CVE’s affected-product data, NVD CPE matches, vendor advisories or package feeds. A mapping means the vendor’s software is named, not that its hosted service was exposed.
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
AWS: amazon-vpc-cni-k8sAWS: aws-network-policy-agent
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- aws.amazon.com/security/security-bulletins/2026-170-aws/ (opens in new tab)
- github.com/aws/amazon-vpc-cni-k8s/releases/tag/v1.22.3 (opens in new tab)
- github.com/aws/amazon-vpc-cni-k8s/security/advisories/GHSA-rp3x-m95q-87mx (opens in new tab)
- github.com/aws/aws-network-policy-agent/releases/tag/v1.3.7 (opens in new tab)
- github.com/aws/aws-network-policy-agent/security/advisories/GHSA-mm5f-ggvx-hmvw (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)