Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.
VOLERION
Volerion Security Research

NOT DEFERRED DATABASE

VULNERABILITIES

CVE-2026-86831 Details

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).

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: AMZNCVSS-B:8.7 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://github.com/aws/amazon-vpc-cni-k8s/releases/tag/v1.22.4 AMZN
https://github.com/aws/amazon-vpc-cni-k8s/security/advisories/GHSA-gjc7-c7mx-x8f3 AMZN
https://github.com/aws/aws-network-policy-agent/releases/tag/v1.4.0 AMZN
https://github.com/aws/aws-network-policy-agent/security/advisories/GHSA-7xv7-8r3j-3j25 AMZN
https://staging.prod.website.marketing.aws.dev/security/security-bulletins/2026-113-aws/ AMZN

Weakness Enumeration

CWE-IDCWE NameSource
CWE-1289Improper Validation of Unsafe Equivalence in InputAMZN

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-86831
NVD Published Date:
Sep 16, 2026
NVD Last Modified:
Sep 17, 2026
Source:
AMZN
CVE-2026-86831 Details - Not Deferred