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AWS AWSCloudFormation documentation change

Service: AWSCloudFormation · 2025-07-18 · Documentation low

File: AWSCloudFormation/latest/TemplateReference/aws-properties-ecs-service-loadbalancer.md

Summary

Added AdvancedConfiguration property for blue/green deployment load balancer settings

Security assessment

The AdvancedConfiguration documentation adds information about IAM roles and traffic shifting controls, which are security-related features for deployment safety. However, this appears to be feature documentation rather than addressing a specific vulnerability.

Diff

diff --git a/AWSCloudFormation/latest/TemplateReference/aws-properties-ecs-service-loadbalancer.md b/AWSCloudFormation/latest/TemplateReference/aws-properties-ecs-service-loadbalancer.md
index 678496b48..d6afc6280 100644
--- a//AWSCloudFormation/latest/TemplateReference/aws-properties-ecs-service-loadbalancer.md
+++ b//AWSCloudFormation/latest/TemplateReference/aws-properties-ecs-service-loadbalancer.md
@@ -22,0 +23 @@ To declare this entity in your AWS CloudFormation template, use the following sy
+      "AdvancedConfiguration" : [AdvancedConfiguration](./aws-properties-ecs-service-advancedconfiguration.html),
@@ -32,0 +34,2 @@ To declare this entity in your AWS CloudFormation template, use the following sy
+      AdvancedConfiguration: 
+        [AdvancedConfiguration](./aws-properties-ecs-service-advancedconfiguration.html)
@@ -40,0 +44,11 @@ To declare this entity in your AWS CloudFormation template, use the following sy
+`AdvancedConfiguration`
+    
+
+The advanced settings for the load balancer used in blue/green deployments. Specify the alternate target group, listener rules, and IAM role required for traffic shifting during blue/green deployments.
+
+_Required_ : No
+
+ _Type_ : [AdvancedConfiguration](./aws-properties-ecs-service-advancedconfiguration.html)
+
+ _Update requires_ : [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)
+