CVE-2026-15738

Incorrect behavior order in the Gateway API listener-rule generation in Amazon AWS Load Balancer Controller before 3.4.2 might allow an authenticated remote user to intercept, spoof, or deny another namespace's gRPC traffic on a shared Gateway via a crafted HTTPRoute resource. To mitigate this issue, users should upgrade to version 3.4.2.

CVSS v3 8.5 HIGH

8.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://aws.amazon.com/security/security-bulletins/2026-055-aws/
https://github.com/kubernetes-sigs/aws-load-balancer-controller/releases/tag/v3.4.2

Configurations

No configuration.

History

14 Jul 2026, 21:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-14 21:16

Updated : 2026-07-15 16:17

NVD link : CVE-2026-15738

Mitre link : CVE-2026-15738

CVE.ORG link : CVE-2026-15738

JSON object : View

Products Affected

No product.

CWE

CWE-653

Improper Isolation or Compartmentalization

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