AWS AWSCloudFormation documentation change

Service: AWSCloudFormation · 2026-06-04 · Documentation low

File: AWSCloudFormation/latest/TemplateReference/aws-properties-route53resolver-firewallrulegroup-firewallrule.md

Summary

Updated RuleTypeConfig description to clarify union type requirement

Security assessment

Improves documentation for DNS firewall rule configuration (security feature) but without evidence of security vulnerability remediation.

Diff

diff --git a/AWSCloudFormation/latest/TemplateReference/aws-properties-route53resolver-firewallrulegroup-firewallrule.md b/AWSCloudFormation/latest/TemplateReference/aws-properties-route53resolver-firewallrulegroup-firewallrule.md
index 7fa30970c..69bc1bda2 100644
--- a//AWSCloudFormation/latest/TemplateReference/aws-properties-route53resolver-firewallrulegroup-firewallrule.md
+++ b//AWSCloudFormation/latest/TemplateReference/aws-properties-route53resolver-firewallrulegroup-firewallrule.md
@@ -230 +230 @@ _Required_ : No
-Property description not available.
+The rule type configuration for the firewall rule. Exactly one member of this union should be set.