AWS autoscaling medium security documentation change
Summary
Added ecs:DescribeServiceRevisions permission to AWSApplicationAutoscalingECSServicePolicy and documented the policy change.
Security assessment
Explicitly adds new IAM permission required for high-resolution scaling. IAM policy changes directly impact security posture by controlling API access. Enables verification of service configurations to prevent scaling misconfigurations.
Diff
diff --git a/autoscaling/application/userguide/security-iam-awsmanpol.md b/autoscaling/application/userguide/security-iam-awsmanpol.md index 8915f56f4..06a12a12f 100644 --- a//autoscaling/application/userguide/security-iam-awsmanpol.md +++ b//autoscaling/application/userguide/security-iam-awsmanpol.md @@ -128,0 +129,2 @@ The permissions policy allows Application Auto Scaling to complete the following + * Action: `ecs:DescribeServiceRevisions` + @@ -390,0 +393 @@ Change | Description | Date +AWSApplicationAutoscalingECSServicePolicy – Update an existing policy | Added permission to call the Amazon ECS `DescribeServiceRevisions` API action to verify service configuration for high-resolution scaling. | May 20, 2026