AWS AWSCloudFormation medium security documentation change

Service: AWSCloudFormation · 2026-06-04 · Security-related medium

File: AWSCloudFormation/latest/TemplateReference/aws-resource-rtbfabric-respondergateway.md

Summary

Added new properties: AcmCertificateArn, GatewayType, ListenerConfig. Updated documentation for return values and update requirements.

Security assessment

Added AcmCertificateArn property with ACM certificate validation pattern, which relates to TLS certificate management for secure communications. GatewayType property with 'EXTERNAL|INTERNAL' values controls network exposure. These changes document security-sensitive configurations.

Diff

diff --git a/AWSCloudFormation/latest/TemplateReference/aws-resource-rtbfabric-respondergateway.md b/AWSCloudFormation/latest/TemplateReference/aws-resource-rtbfabric-respondergateway.md
index 71d54a7c7..192569617 100644
--- a//AWSCloudFormation/latest/TemplateReference/aws-resource-rtbfabric-respondergateway.md
+++ b//AWSCloudFormation/latest/TemplateReference/aws-resource-rtbfabric-respondergateway.md
@@ -26,0 +27 @@ To declare this entity in your CloudFormation template, use the following syntax
+          "AcmCertificateArn" : String,
@@ -28,0 +30,2 @@ To declare this entity in your CloudFormation template, use the following syntax
+          "GatewayType" : String,
+          "ListenerConfig" : [ListenerConfig](./aws-properties-rtbfabric-respondergateway-listenerconfig.html),
@@ -45,0 +49 @@ To declare this entity in your CloudFormation template, use the following syntax
+      AcmCertificateArn: String
@@ -47,0 +52,3 @@ To declare this entity in your CloudFormation template, use the following syntax
+      GatewayType: String
+      ListenerConfig: 
+        [ListenerConfig](./aws-properties-rtbfabric-respondergateway-listenerconfig.html)
@@ -64,0 +72,13 @@ To declare this entity in your CloudFormation template, use the following syntax
+`AcmCertificateArn`
+    
+
+Property description not available.
+
+_Required_ : No
+
+ _Type_ : String
+
+ _Pattern_ : `arn:(aws|aws-cn|aws-us-gov):acm:([a-z0-9-]+):[0-9]{12}:certificate/.{1,2048}`
+
+_Update requires_ : [Some interruptions](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-some-interrupt)
+
@@ -90,0 +111,24 @@ _Update requires_ : [Some interruptions](https://docs.aws.amazon.com/AWSCloudFor
+`GatewayType`
+    
+
+Property description not available.
+
+_Required_ : No
+
+ _Type_ : String
+
+ _Allowed values_ : `EXTERNAL | INTERNAL`
+
+ _Update requires_ : [Some interruptions](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-some-interrupt)
+
+`ListenerConfig`
+    
+
+Property description not available.
+
+_Required_ : No
+
+ _Type_ : [ListenerConfig](./aws-properties-rtbfabric-respondergateway-listenerconfig.html)
+
+ _Update requires_ : [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)
+
@@ -100 +144 @@ _Required_ : No
- _Update requires_ : [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)
+ _Update requires_ : [Some interruptions](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-some-interrupt)
@@ -211,0 +256,5 @@ For more information about using the `Fn::GetAtt` intrinsic function, see [`Fn::
+Property description not available.
+
+`CertificateAssociationStatus`
+    
+
@@ -216,0 +266,5 @@ Property description not available.
+Property description not available.
+
+`ExternalInboundEndpoint`
+    
+