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.
Published:Jul 14, 2026
Last Modified:Jul 16, 2026
EPS:Jul 14, 2026
EPSS Score:0.00373
CVSS Score:8.5
Affected Products
Vendor
Product
Action
Vendor
Amazon
Product
Aws-load-balancer-controller
Amazon
Aws-load-balancer-controller
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
No CAPEC recorded yet
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
