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. To remediate this issue, users should upgrade to Amazon EKS Network Policy Agent 1.4.0 or later and Amazon VPC CNI Managed Add-on v1.22.4 or later (which includes Network Policy Agent v1.4.0).
History

Tue, 20 Oct 2026 19:30:00 +0000


Tue, 20 Oct 2026 18:30:00 +0000

Type Values Removed Values Added
References

Thu, 17 Sep 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 16 Sep 2026 20:15:00 +0000


Wed, 16 Sep 2026 20:00:00 +0000

Type Values Removed Values Added
Description 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. To remediate this issue, users should upgrade to Amazon EKS Network Policy Agent 1.4.0 or later and Amazon VPC CNI Managed Add-on v1.22.4 or later (which includes Network Policy Agent v1.4.0).
Title Improper validation of pod identifier uniqueness in aws-network-policy-agent in Amazon EKS
First Time appeared Aws
Aws amazon-vpc-cni-k8s
Aws aws-network-policy-agent
Weaknesses CWE-1289
CPEs cpe:2.3:a:aws:amazon-vpc-cni-k8s:*:*:*:*:*:*:*:*
cpe:2.3:a:aws:aws-network-policy-agent:*:*:*:*:*:*:*:*
Vendors & Products Aws
Aws amazon-vpc-cni-k8s
Aws aws-network-policy-agent
References
Metrics cvssV3_1

{'score': 8.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: AMZN

Published: 2026-09-16T19:49:49.377Z

Updated: 2026-10-20T18:07:48.050Z

Reserved: 2026-09-08T14:28:44.391Z

Link: CVE-2026-86831

cve-icon Vulnrichment

Updated: 2026-09-17T16:08:47.266Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-16T20:17:36.980

Modified: 2026-10-20T19:19:08.940

Link: CVE-2026-86831

cve-icon Redhat

No data.