CVE-2026-86831Improper validation of pod identifier uniqueness in aws-network-policy-agent in Amazon EKS
Updated under an hour ago ()
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It affects aws-network-policy-agent and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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).
- CVSS
- 8.7 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
- Weakness (CWE)
- CWE-1289
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- AMZN
- NVD analysis
- Awaiting Analysis
- Record last updated
- Sep 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
AWS aws-network-policy-agent aws:network_policy_agent (from the name) | before 1.4.0 | CNA record |
AWS amazon-vpc-cni-k8s aws:amazon_vpc_cni_k8s (from the name) | from 1.14.0 before 1.22.4 | CNA record |
References
- https://github.com/aws/amazon-vpc-cni-k8s/releases/tag/v1.22.4patch, release-notes
- https://github.com/aws/aws-network-policy-agent/releases/tag/v1.4.0patch, release-notes
- https://staging.prod.website.marketing.aws.dev/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
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.