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VulnerabilityPublished

CVE-2026-122266: aws-network-policy-agent · SoC

Affects aws-network-policy-agentSource CVE Database V5

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Not known to be exploited · CVSS 8.7 High : upgrade to 1.3.7 soon.

Data as of 4 Nov 2026, 22:22 UTC

CVSS 3.1 base score
8.7High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (AMZN)CVSS 3.18.7
CNA (AMZN)CVSS 4.06.3
Patch
Available – fixed in 1.3.7, 1.22.3
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 4 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 4 Nov 2026.

What to do

Upgrade aws-network-policy-agent and aws/aws-network-policy-agent to 1.3.7; amazon-vpc-cni-k8s and aws/amazon-vpc-cni-k8s to 1.22.3.

Affected software

ProductAffectedFixed in
AWSaws-network-policy-agentAffected
  • <1.3.7
Fixed in
  • 1.3.7
AWSamazon-vpc-cni-k8sAffected
  • <1.22.3
Fixed in
  • 1.22.3
GitHubaws/aws-network-policy-agentpkg:github/aws/aws-network-policy-agentOther threatsAffected
  • <1.3.7
Fixed in
  • 1.3.7
GitHubaws/amazon-vpc-cni-k8spkg:github/aws/amazon-vpc-cni-k8sOther threatsAffected
  • <1.22.3
Fixed in
  • 1.22.3

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

AWS has released fixed versions to remediate this vulnerability: upgrade to Amazon VPC CNI Managed Add-on version 1.22.3 or later, which includes Network Policy Agent version 1.3.7 or later. Since this is a cloud-managed service component, AWS manages remediation for the cloud-hosted service, but users must upgrade their add-on versions to apply the fix. No additional mitigation steps are indicated in the vendor advisory.

Description

Improper isolation of shared resources in aws-network-policy-agent in Amazon EKS Network Policy Agent before 1.3.7 (VPC CNI before 1.22.3) might allow an authenticated adjacent user to bypass NetworkPolicy ingress enforcement on co-located pods via eBPF conntrack map poisoning using crafted AF_PACKET frames. To remediate this issue, users should upgrade to Amazon VPC CNI Managed Add-on v1.22.3 or later (which includes Network Policy Agent v1.3.7).

Reports on CVE-2026-122266

References

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