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CVE PROGRAM SOURCE RECORD5.8 Medium

CVE-2026-15738

Cross-namespace traffic interception via incorrect route precedence ordering in AWS Load Balancer Controller

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Amazon aws-load-balancer-controller

Default version status: unaffected

  • 0 to < 3.4.2affected

References