CVE-2026-86831
Improper validation of pod identifier uniqueness in aws-network-policy-agent in Amazon EKS
- State
- Published
- Severity
- 8.7 High
- Published
- Sep 16, 2026
- Updated
- Oct 20, 2026
- Reserved
- Sep 8, 2026
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).
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | 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 | AMZN |
| 3.1 | 8.7 High | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N | AMZN |
Weaknesses
- CWE-1289 Improper validation of unsafe equivalence in input
Affected Products
| Product | Versions |
|---|---|
aws-network-policy-agentAWS |
|
amazon-vpc-cni-k8sAWS |
|
References
- https://github.com/aws/amazon-vpc-cni-k8s/releases/tag/v1.22.4patchrelease-notes
- https://github.com/aws/aws-network-policy-agent/releases/tag/v1.4.0patchrelease-notes
- https://aws.amazon.com/security/security-bulletins/2026-113-aws/vendor-advisory
- https://github.com/aws/aws-network-policy-agent/security/advisories/GHSA-7xv7-8r3j-3j25release-notes
- https://github.com/aws/amazon-vpc-cni-k8s/security/advisories/GHSA-gjc7-c7mx-x8f3release-notes
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.