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AWS AWSCloudFormation medium security documentation change

Service: AWSCloudFormation · 2026-02-28 · Security-related medium

File: AWSCloudFormation/latest/TemplateReference/aws-properties-bedrockagentcore-gateway-customclaimvalidationtype.md

Summary

Added documentation for custom claim validation rules and data types.

Security assessment

Defines validation rules for authentication claims, directly impacting authorization security. Missing validation could lead to privilege escalation.

Diff

diff --git a/AWSCloudFormation/latest/TemplateReference/aws-properties-bedrockagentcore-gateway-customclaimvalidationtype.md b/AWSCloudFormation/latest/TemplateReference/aws-properties-bedrockagentcore-gateway-customclaimvalidationtype.md
index 47dd44464..0ae50fee1 100644
--- a//AWSCloudFormation/latest/TemplateReference/aws-properties-bedrockagentcore-gateway-customclaimvalidationtype.md
+++ b//AWSCloudFormation/latest/TemplateReference/aws-properties-bedrockagentcore-gateway-customclaimvalidationtype.md
@@ -9 +9 @@ This is the new _CloudFormation Template Reference Guide_. Please update your bo
-The `CustomClaimValidationType` property type specifies Property description not available. for an [AWS::BedrockAgentCore::Gateway](./aws-resource-bedrockagentcore-gateway.html).
+Defines the name of a custom claim field and rules for finding matches to authenticate its value.
@@ -39 +39 @@ To declare this entity in your CloudFormation template, use the following syntax
-Property description not available.
+Defines the value or values to match for and the relationship of the match.
@@ -50 +50 @@ _Required_ : Yes
-Property description not available.
+The name of the custom claim field to check.
@@ -63 +63,8 @@ _Update requires_ : [No interruption](https://docs.aws.amazon.com/AWSCloudFormat
-Property description not available.
+The data type of the claim value to check for.
+
+  * Use `STRING` if you want to find an exact match to a string you define.
+
+  * Use `STRING_ARRAY` if you want to fnd a match to at least one value in an array you define.
+
+
+