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AWS AWSEC2 documentation change

Service: AWSEC2 · 2026-04-22 · Documentation low

File: AWSEC2/latest/UserGuide/requester-managed-eni.md

Summary

Clarified and expanded the list of actions that cannot be performed on a requester-managed network interface, and added a note that resetting attributes is still allowed.

Security assessment

The change provides more detailed operational guidance on permissions and restrictions for a specific resource type (ENI). It clarifies security boundaries by explicitly listing prohibited actions (like modification, attachment/detachment, IP address management) but does not indicate it is fixing a discovered security flaw or weakness.

Diff

diff --git a/AWSEC2/latest/UserGuide/requester-managed-eni.md b/AWSEC2/latest/UserGuide/requester-managed-eni.md
index b623285aa..451aaac47 100644
--- a//AWSEC2/latest/UserGuide/requester-managed-eni.md
+++ b//AWSEC2/latest/UserGuide/requester-managed-eni.md
@@ -13 +13 @@ A requester-managed network interface is a network interface that an AWS service
-  * You can view the requester-managed network interfaces in your account. You can add or remove tags, but you can't change other properties of a requester-managed network interface.
+  * You can view the requester-managed network interfaces in your account and you can add or remove tags. However, you can't perform the following actions on a requester-managed network interface:
@@ -15 +15,11 @@ A requester-managed network interface is a network interface that an AWS service
-  * You can't detach a requester-managed network interface.
+    * Modify network interface attributes
+
+    * Attach or detach the network interface
+
+    * Associate or disassociate Elastic IP addresses
+
+    * Assign or unassign private IP addresses
+
+    * Specify the network interface when launching an instance
+
+You can still reset network interface attributes, even though you can't modify them.