diff --git a/website/pages/docs/upgrading/upgrade-to-1.4.0.mdx b/website/pages/docs/upgrading/upgrade-to-1.4.0.mdx
index 9788380087..1b61462ead 100644
--- a/website/pages/docs/upgrading/upgrade-to-1.4.0.mdx
+++ b/website/pages/docs/upgrading/upgrade-to-1.4.0.mdx
@@ -10,6 +10,8 @@ description: |-
 # Overview
 
 This page contains the list of deprecations and important or breaking changes
-for Vault 1.3.4 compared to 1.4.0. Please read it carefully.
+for Vault 1.3.X compared to 1.4.0. Please read it carefully.
 
 @include 'partials/aws-auth-metadata-issue.mdx'
+@include 'partials/ldap-upndomain-issue.mdx'
+
diff --git a/website/pages/docs/upgrading/upgrade-to-1.4.1.mdx b/website/pages/docs/upgrading/upgrade-to-1.4.1.mdx
index 1b57fd4e18..de2a1e347a 100644
--- a/website/pages/docs/upgrading/upgrade-to-1.4.1.mdx
+++ b/website/pages/docs/upgrading/upgrade-to-1.4.1.mdx
@@ -31,3 +31,5 @@ vault write auth/aws/config/identity \
   ec2_metadata=account_id,auth_type,instance_id,region \
   iam_metadata=account_id,auth_type,client_user_id,canonical_arn,inferred_entity_id,inferred_aws_region
 ```
+
+@include 'partials/ldap-upndomain-issue.mdx'
diff --git a/website/pages/partials/ldap-upndomain-issue.mdx b/website/pages/partials/ldap-upndomain-issue.mdx
new file mode 100644
index 0000000000..1f79bd74b0
--- /dev/null
+++ b/website/pages/partials/ldap-upndomain-issue.mdx
@@ -0,0 +1,6 @@
+## LDAP auth engine and upndomain
+
+Users of the LDAP auth engine with the `upndomain` configuration setting populated
+should hold off on upgrading to 1.4.x for now.  We are investigating a regression
+introduced by [#8333](https://github.com/hashicorp/vault/pull/8333).  There is
+no Github issue for this bug yet.