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).

Attack Vector Network

Attack Complexity Low

Privileges Required High

Attack Requirements Present

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact High

Subsequent System Integrity Impact High

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
AWS aws-network-policy-agent unaffected
Version Status Constraints
0 affected < 1.4.0
AWS amazon-vpc-cni-k8s unaffected
Version Status Constraints
1.14.0 affected < 1.22.4

No data.

No data.

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Project Subscriptions

Vendors Products
Aws Subscribe
Amazon-vpc-cni-k8s Subscribe
Aws-network-policy-agent Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/aws/amazon-vpc-cni-k8s/releases/tag/v1.22.4 cve-icon cve-icon
https://github.com/aws/amazon-vpc-cni-k8s/security/advisories/GHSA-gjc7-c7mx-x8f3 cve-icon cve-icon
https://github.com/aws/aws-network-policy-agent/releases/tag/v1.4.0 cve-icon cve-icon
https://github.com/aws/aws-network-policy-agent/security/advisories/GHSA-7xv7-8r3j-3j25 cve-icon cve-icon
https://staging.prod.website.marketing.aws.dev/security/security-bulletins/2026-113-aws/ cve-icon cve-icon
History

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

Type Values Removed Values Added
References

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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: AMZN

Published:

Updated: 2026-09-16T20:06:41.431Z

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

Link: CVE-2026-86831

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

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

Modified: 2026-09-16T20:36:12.510

Link: CVE-2026-86831

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses