diff --git a/app/models/authentication.rb b/app/models/authentication.rb
index b601a39e34ac..5c28c3f998ba 100644
--- a/app/models/authentication.rb
+++ b/app/models/authentication.rb
@@ -45,6 +45,8 @@ def self.new(*args, &block)
   include OwnershipMixin
   include TenancyMixin
 
+  validates :name, :presence => true, :length => {:maximum => 128}
+
   belongs_to :tenant
 
   # TODO: DELETE ME!!!!
diff --git a/app/models/cloud_tenant.rb b/app/models/cloud_tenant.rb
index 5e910879ff2d..a808007e9557 100644
--- a/app/models/cloud_tenant.rb
+++ b/app/models/cloud_tenant.rb
@@ -30,6 +30,8 @@ class CloudTenant < ApplicationRecord
   has_many   :flavors, :through => :cloud_tenant_flavors
   has_many   :cloud_volume_types, :through => :ext_management_system
 
+  validates :name, :length => {:maximum => 128}
+
   alias_method :direct_cloud_networks, :cloud_networks
 
   acts_as_miq_taggable
diff --git a/app/models/cloud_volume_snapshot.rb b/app/models/cloud_volume_snapshot.rb
index 2fab9887c475..8f5cc6a12783 100644
--- a/app/models/cloud_volume_snapshot.rb
+++ b/app/models/cloud_volume_snapshot.rb
@@ -15,6 +15,8 @@ class CloudVolumeSnapshot < ApplicationRecord
 
   virtual_total :total_based_volumes, :based_volumes
 
+  validates :description, :length => {:maximum => 50}
+
   def self.class_by_ems(ext_management_system)
     ext_management_system&.class_by_ems(:CloudVolumeSnapshot)
   end
diff --git a/app/models/generic_object.rb b/app/models/generic_object.rb
index dc862e993564..2e1d8a51286a 100644
--- a/app/models/generic_object.rb
+++ b/app/models/generic_object.rb
@@ -10,7 +10,7 @@ class GenericObject < ApplicationRecord
   has_one :picture, :through => :generic_object_definition
   has_many :custom_button_events, :foreign_key => :target_id, :dependent => :destroy
 
-  validates :name, :presence => true
+  validates :name, :presence => true, :length => {:maximum => 255}
 
   delegate :property_attribute_defined?,
            :property_defined?,
diff --git a/app/models/miq_alert.rb b/app/models/miq_alert.rb
index e079c27c107d..7743cd4e8180 100644
--- a/app/models/miq_alert.rb
+++ b/app/models/miq_alert.rb
@@ -9,6 +9,7 @@ class MiqAlert < ApplicationRecord
   serialize :options
 
   validates :description, :presence => true, :uniqueness_when_changed => true, :length => {:maximum => 255}
+  validates :notes, :length => {:maximum => 512}
   validate :validate_automate_expressions
   validate :validate_single_expression
   validates :severity, :inclusion => {:in => SEVERITIES}
diff --git a/app/models/pxe_image.rb b/app/models/pxe_image.rb
index 136cf95a8951..82d9795737ee 100644
--- a/app/models/pxe_image.rb
+++ b/app/models/pxe_image.rb
@@ -5,6 +5,8 @@ class PxeImage < ApplicationRecord
 
   has_many :customization_templates, :through => :pxe_image_type
 
+  validates :name, :length => {:maximum => 255}
+
   acts_as_miq_taggable
 
   before_validation do
diff --git a/app/models/time_profile.rb b/app/models/time_profile.rb
index 6ddbc001a623..3f9adbc75df2 100644
--- a/app/models/time_profile.rb
+++ b/app/models/time_profile.rb
@@ -7,6 +7,8 @@ class TimeProfile < ApplicationRecord
   default_value_for :days,  ALL_DAYS
   default_value_for :hours, ALL_HOURS
 
+  validates :description, :length => {:maximum => 128}
+
   has_many  :miq_reports
   has_many  :metric_rollups
 
diff --git a/app/models/vm_or_template.rb b/app/models/vm_or_template.rb
index 1d6a1c7e283e..9faffabee452 100644
--- a/app/models/vm_or_template.rb
+++ b/app/models/vm_or_template.rb
@@ -61,7 +61,10 @@ class VmOrTemplate < ApplicationRecord
   POWER_OPS = %w[start stop suspend reset shutdown_guest standby_guest reboot_guest]
   REMOTE_REGION_TASKS = POWER_OPS + %w[retire_now]
 
-  validates_presence_of     :name, :location
+  # NOTE: different react forms set a maxLength of 50 or 128
+  validates                 :name, :presence => true,  :length => {:maximum => 128}
+  validates                 :description, :length => {:maximum => 100}
+  validates                 :location, :presence => true
   validates                 :vendor, :inclusion => {:in => VENDOR_TYPES.keys}
 
   has_one                   :operating_system, :dependent => :destroy
diff --git a/app/models/zone.rb b/app/models/zone.rb
index a15d93500736..9ff847eaa93b 100644
--- a/app/models/zone.rb
+++ b/app/models/zone.rb
@@ -1,8 +1,7 @@
 class Zone < ApplicationRecord
-  validates_presence_of   :name, :description
-  validates :name, :unique_within_region => true
-
   serialize :settings, Hash
+  validates :name, :unique_within_region => true, :presence => true, :length => {:maximum => 50}
+  validates :description, :presence => true, :length => {:maximum => 50}
 
   belongs_to :log_file_depot, :class_name => "FileDepot"