core/modules/ckeditor5/ckeditor5.ckeditor5.yml     | 46 ++++++++++++++++++++++
 .../src/Kernel/CKEditor5PluginManagerTest.php      |  4 +-
 2 files changed, 49 insertions(+), 1 deletion(-)

diff --git a/core/modules/ckeditor5/ckeditor5.ckeditor5.yml b/core/modules/ckeditor5/ckeditor5.ckeditor5.yml
index 05d0031750..4101ef611c 100644
--- a/core/modules/ckeditor5/ckeditor5.ckeditor5.yml
+++ b/core/modules/ckeditor5/ckeditor5.ckeditor5.yml
@@ -93,6 +93,52 @@ ckeditor5_wildcardHtmlSupport:
     # @see \Drupal\ckeditor5\Plugin\CKEditor5PluginManagerInterface::getEnabledDefinitions()
     conditions: []
 
+# https://html.spec.whatwg.org/multipage/dom.html#attr-dir
+ckeditor5_globalAttributeDir:
+  ckeditor5:
+    plugins: [htmlSupport.GeneralHtmlSupport]
+    config:
+      htmlSupport:
+        allow:
+          -
+            name:
+              regexp:
+                pattern: /.*/
+            attributes:
+              - key: dir
+                value:
+                  regexp:
+                    pattern: /^(ltr|rtl)$/
+  drupal:
+    label: Global `dir` attribute
+    # @see \Drupal\filter\Plugin\Filter\FilterHtml::getHTMLRestrictions()
+    elements:
+      - <* dir="ltr rtl">
+    library: core/ckeditor5.htmlSupport
+    conditions:
+      filter: filter_html
+
+# https://html.spec.whatwg.org/multipage/dom.html#attr-lang
+ckeditor5_globalAttributeLang:
+  ckeditor5:
+    plugins: [htmlSupport.GeneralHtmlSupport]
+    config:
+      htmlSupport:
+        allow:
+          -
+            name:
+              regexp:
+                pattern: /.*/
+            attributes: lang
+  drupal:
+    label: Global `lang` attribute
+    # @see \Drupal\filter\Plugin\Filter\FilterHtml::getHTMLRestrictions()
+    elements:
+      - <* lang>
+    library: core/ckeditor5.htmlSupport
+    conditions:
+      filter: filter_html
+
 ckeditor5_specialCharacters:
   ckeditor5:
     plugins:
diff --git a/core/modules/ckeditor5/tests/src/Kernel/CKEditor5PluginManagerTest.php b/core/modules/ckeditor5/tests/src/Kernel/CKEditor5PluginManagerTest.php
index d9b24457f8..14ae41cb6e 100644
--- a/core/modules/ckeditor5/tests/src/Kernel/CKEditor5PluginManagerTest.php
+++ b/core/modules/ckeditor5/tests/src/Kernel/CKEditor5PluginManagerTest.php
@@ -1020,6 +1020,8 @@ public function testEnabledPlugins() {
       'ckeditor5_bold',
       'ckeditor5_emphasis',
       'ckeditor5_essentials',
+      'ckeditor5_globalAttributeDir',
+      'ckeditor5_globalAttributeLang',
       'ckeditor5_heading',
       'ckeditor5_paragraph',
       'ckeditor5_pasteFromOffice',
@@ -1030,6 +1032,7 @@ public function testEnabledPlugins() {
       'ckeditor5/drupal.ckeditor5.emphasis',
       'ckeditor5/drupal.ckeditor5.internal',
       'core/ckeditor5.basic',
+      'core/ckeditor5.htmlSupport',
       'core/ckeditor5.internal',
       'core/ckeditor5.pasteFromOffice',
     ];
@@ -1126,7 +1129,6 @@ public function testEnabledPlugins() {
     $this->assertSame(array_values($expected_plugins), $plugin_ids);
     $expected_libraries = array_merge($expected_libraries, [
       'core/ckeditor5.alignment',
-      'core/ckeditor5.htmlSupport',
     ]);
     sort($expected_libraries);
     $this->assertSame($expected_libraries, $this->manager->getEnabledLibraries($editor));