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AWS cli medium security documentation change

Service: cli · 2026-07-10 · Security-related medium

File: cli/latest/reference/ssm/describe-maintenance-window-tasks.md

Summary

Added validation warning note and updated CLI version reference

Security assessment

Added explicit warning about TaskArn validation gap during task registration. This documents a security-relevant behavior where invalid/malicious ARNs could be accepted, potentially leading to privilege escalation or unauthorized actions. The note serves as security documentation for a previously unvalidated input vector.

Diff

diff --git a/cli/latest/reference/ssm/describe-maintenance-window-tasks.md b/cli/latest/reference/ssm/describe-maintenance-window-tasks.md
index 0857039e6..d79e3ab56 100644
--- a//cli/latest/reference/ssm/describe-maintenance-window-tasks.md
+++ b//cli/latest/reference/ssm/describe-maintenance-window-tasks.md
@@ -15 +15 @@
-  * [AWS CLI 2.35.16 Command Reference](../../index.html) »
+  * [AWS CLI 2.35.19 Command Reference](../../index.html) »
@@ -563,0 +564,4 @@ Tasks -> (list)
+>>> ### Note
+>>> 
+>>> Maintenance Window does not validate the TaskArn when you register a task. A successful registration does not guarantee that the TaskArn is valid.
+>>> 
@@ -879 +883 @@ NextToken -> (string)
-  * [AWS CLI 2.35.16 Command Reference](../../index.html) »
+  * [AWS CLI 2.35.19 Command Reference](../../index.html) »