CVE-2026-86831

Improper validation of pod identifier uniqueness in aws-network-policy-agent in Amazon EKS

Published Sep 16, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
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).

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

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

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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
AMZN
Published
Updated
Oct 20, 2026, 6:07 PM
Reserved
Sep 8, 2026, 2:28 PM
Status
Awaiting Analysis
Published
Sep 16, 2026, 8:17 PM
Modified
Oct 20, 2026, 7:19 PM