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AWS AWSCloudFormation medium security documentation change

Service: AWSCloudFormation · 2026-06-25 · Security-related medium

File: AWSCloudFormation/latest/TemplateReference/aws-properties-msk-replicator-kafkaclusterclientauthentication.md

Summary

Added MTLS authentication option and changed SASL authentication from required to optional

Security assessment

The change adds MTLS (Mutual TLS) authentication, which enhances security through certificate-based mutual authentication. Changing SASL from required to optional allows for MTLS as a more secure alternative, improving authentication security for Kafka clusters.

Diff

diff --git a/AWSCloudFormation/latest/TemplateReference/aws-properties-msk-replicator-kafkaclusterclientauthentication.md b/AWSCloudFormation/latest/TemplateReference/aws-properties-msk-replicator-kafkaclusterclientauthentication.md
index 5deebe523..b01aa0f44 100644
--- a//AWSCloudFormation/latest/TemplateReference/aws-properties-msk-replicator-kafkaclusterclientauthentication.md
+++ b//AWSCloudFormation/latest/TemplateReference/aws-properties-msk-replicator-kafkaclusterclientauthentication.md
@@ -20,0 +21 @@ To declare this entity in your CloudFormation template, use the following syntax
+      "MTLS" : [KafkaClusterMtlsAuthentication](./aws-properties-msk-replicator-kafkaclustermtlsauthentication.html),
@@ -27,0 +29,2 @@ To declare this entity in your CloudFormation template, use the following syntax
+      MTLS: 
+        [KafkaClusterMtlsAuthentication](./aws-properties-msk-replicator-kafkaclustermtlsauthentication.html)
@@ -33,0 +37,11 @@ To declare this entity in your CloudFormation template, use the following syntax
+`MTLS`
+    
+
+Property description not available.
+
+_Required_ : No
+
+ _Type_ : [KafkaClusterMtlsAuthentication](./aws-properties-msk-replicator-kafkaclustermtlsauthentication.html)
+
+ _Update requires_ : [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)
+
@@ -39 +53 @@ Details for SASL/SCRAM client authentication.
-_Required_ : Yes
+_Required_ : No