AWS Security ChangesHomeSearch

AWS cli medium security documentation change

Service: cli · 2026-01-31 · Security-related medium

File: cli/latest/reference/cognito-idp/describe-user-pool.md

Summary

Added documentation for InboundFederation Lambda trigger configuration in UserPool structure output.

Security assessment

Documents the same security feature as create-user-pool.md, enabling visibility into attribute transformation configurations. Security impact: Allows auditing of security-critical attribute transformation logic applied during federated authentication.

Diff

diff --git a/cli/latest/reference/cognito-idp/describe-user-pool.md b/cli/latest/reference/cognito-idp/describe-user-pool.md
index 5ff76e079..0c8325f1d 100644
--- a//cli/latest/reference/cognito-idp/describe-user-pool.md
+++ b//cli/latest/reference/cognito-idp/describe-user-pool.md
@@ -15 +15 @@
-  * [AWS CLI 2.33.8 Command Reference](../../index.html) »
+  * [AWS CLI 2.33.12 Command Reference](../../index.html) »
@@ -954,0 +955,28 @@ UserPool -> (structure)
+>> 
+>> InboundFederation -> (structure)
+>>
+>>> The configuration of an inbound federation Lambda trigger. This trigger can transform federated user attributes during the authentication with external identity providers.
+>>> 
+>>> LambdaVersion -> (string) [required]
+>>>
+>>>> The user pool trigger version of the request that Amazon Cognito sends to your Lambda function. Higher-numbered versions add fields that support new features.
+>>>> 
+>>>> You must use a `LambdaVersion` of `V1_0` with an inbound federation function.
+>>>> 
+>>>> Possible values:
+>>>> 
+>>>>   * `V1_0`
+>>>> 
+
+>>> 
+>>> LambdaArn -> (string) [required]
+>>>
+>>>> The Amazon Resource Name (ARN) of the function that you want to assign to your Lambda trigger.
+>>>> 
+>>>> Constraints:
+>>>> 
+>>>>   * min: `20`
+>>>>   * max: `2048`
+>>>>   * pattern: `arn:[\w+=/,.@-]+:[\w+=/,.@-]+:([\w+=/,.@-]*)?:[0-9]+:[\w+=/,.@-]+(:[\w+=/,.@-]+)?(:[\w+=/,.@-]+)?`
+>>>> 
+
@@ -1724 +1752 @@ UserPool -> (structure)
-  * [AWS CLI 2.33.8 Command Reference](../../index.html) »
+  * [AWS CLI 2.33.12 Command Reference](../../index.html) »