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AWS AWSCloudFormation documentation change

Service: AWSCloudFormation · 2025-11-22 · Documentation medium

File: AWSCloudFormation/latest/TemplateReference/aws-properties-elasticloadbalancingv2-listener-jwtvalidationactionadditionalclaim.md

Summary

Updated documentation for JWT claim validation with format restrictions and claim requirements

Security assessment

Provides detailed security configuration guidance for JWT claim validation but does not indicate remediation of a specific vulnerability.

Diff

diff --git a/AWSCloudFormation/latest/TemplateReference/aws-properties-elasticloadbalancingv2-listener-jwtvalidationactionadditionalclaim.md b/AWSCloudFormation/latest/TemplateReference/aws-properties-elasticloadbalancingv2-listener-jwtvalidationactionadditionalclaim.md
index ee6023a7c..20916a935 100644
--- a//AWSCloudFormation/latest/TemplateReference/aws-properties-elasticloadbalancingv2-listener-jwtvalidationactionadditionalclaim.md
+++ b//AWSCloudFormation/latest/TemplateReference/aws-properties-elasticloadbalancingv2-listener-jwtvalidationactionadditionalclaim.md
@@ -9 +9 @@ This is the new _CloudFormation Template Reference Guide_. Please update your bo
-The `JwtValidationActionAdditionalClaim` property type specifies Property description not available. for an [AWS::ElasticLoadBalancingV2::Listener](./aws-resource-elasticloadbalancingv2-listener.html).
+Information about an additional claim to validate.
@@ -39 +39 @@ To declare this entity in your CloudFormation template, use the following syntax
-Property description not available.
+The format of the claim value.
@@ -44,0 +45,2 @@ _Required_ : Yes
+ _Allowed values_ : `single-string | string-array | space-separated-values`
+
@@ -50 +52 @@ _Required_ : Yes
-Property description not available.
+The name of the claim. You can't specify `exp`, `iss`, `nbf`, or `iat` because we validate them by default.
@@ -61 +63 @@ _Required_ : Yes
-Property description not available.
+The claim value. The maximum size of the list is 10. Each value can be up to 256 characters in length. If the format is `space-separated-values`, the values can't include spaces.