CVE-2026-15738
Cross-namespace traffic interception via incorrect route precedence ordering in AWS Load Balancer Controller
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 4.0 · 5.8 Medium
EPSS < 1%
KEV · Not listed
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