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AWS AmazonCloudWatch documentation change

Service: AmazonCloudWatch · 2026-05-25 · Documentation low

File: AmazonCloudWatch/latest/logs/iam-access-control-overview-cwl.md

Summary

Simplified log group ARN format documentation by removing the dual ARN format explanation and trailing '*:' syntax guidance

Security assessment

This change simplifies ARN documentation but removes guidance about when to use different ARN formats for tagging APIs. No evidence of security vulnerability being addressed; it's a documentation cleanup that might impact policy creation accuracy but doesn't directly relate to security issues.

Diff

diff --git a/AmazonCloudWatch/latest/logs/iam-access-control-overview-cwl.md b/AmazonCloudWatch/latest/logs/iam-access-control-overview-cwl.md
index 3ce2a325c..90326b8e2 100644
--- a//AmazonCloudWatch/latest/logs/iam-access-control-overview-cwl.md
+++ b//AmazonCloudWatch/latest/logs/iam-access-control-overview-cwl.md
@@ -53,7 +53 @@ Resource type | ARN format
-Log group |  Both of the following are used. The second one, with the `:*` at the end, is what is returned by the `describe-log-groups` CLI command and the **DescribeLogGroups** API.  arn:aws:logs:`region`:`account-id`:log-group:`log_group_name` arn:aws:logs:`region`:`account-id`:log-group:`log_group_name`:* Use the first version, without the trailing `:*`, in the following situations:
-
-  * In the `logGroupIdentifier` input field in many CloudWatch Logs APIs.
-  * In the `resourceArn` field in tagging APIs
-  * In IAM policies, when specifying permissions for [TagResource](https://docs.aws.amazon.com/AmazonCloudWatchLogs/latest/APIReference/API_TagResource.html), [UntagResource](https://docs.aws.amazon.com/AmazonCloudWatchLogs/latest/APIReference/API_UntagResource.html), and [ListTagsForResource](https://docs.aws.amazon.com/AmazonCloudWatchLogs/latest/APIReference/API_ListTagsForResource.html).
-
-Use the second version, with the trailing `:*`, to refer to the ARN when specifying permissions in IAM policies for all other API actions.  
+Log group |  arn:aws:logs:`region`:`account-id`:log-group:`log_group_name`