From 6803430ad3e34c06e2885009f3102b2f171b4fa9 Mon Sep 17 00:00:00 2001
From: Hannah Brooks <hannah.brooks@elastic.co>
Date: Tue, 17 Mar 2026 13:15:56 -0400
Subject: [PATCH 1/2] added EuiScreenReaderLive for toast announcement

---
 .../public/exceptions/pages/shared_lists/index.tsx         | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/x-pack/solutions/security/plugins/security_solution/public/exceptions/pages/shared_lists/index.tsx b/x-pack/solutions/security/plugins/security_solution/public/exceptions/pages/shared_lists/index.tsx
index 058b37dc34262..bbb2b2a85276e 100644
--- a/x-pack/solutions/security/plugins/security_solution/public/exceptions/pages/shared_lists/index.tsx
+++ b/x-pack/solutions/security/plugins/security_solution/public/exceptions/pages/shared_lists/index.tsx
@@ -19,6 +19,7 @@ import {
   EuiPageHeader,
   EuiPagination,
   EuiPopover,
+  EuiScreenReaderLive,
   EuiSpacer,
   EuiText,
 } from '@elastic/eui';
@@ -152,6 +153,7 @@ export const SharedLists = React.memo(() => {
 
   const [exportDownload, setExportDownload] = useState<{ name?: string; blob?: Blob }>({});
   const [displayImportListFlyout, setDisplayImportListFlyout] = useState(false);
+  const [screenReaderMessage, setScreenReaderMessage] = useState('');
   const { addError, addSuccess } = useAppToasts();
 
   // Loading states
@@ -206,7 +208,9 @@ export const SharedLists = React.memo(() => {
   const handleExportSuccess = useCallback(
     (listId: string, name: string) =>
       (blob: Blob): void => {
-        addSuccess(i18n.EXCEPTION_LIST_EXPORTED_SUCCESSFULLY(name));
+        const message = i18n.EXCEPTION_LIST_EXPORTED_SUCCESSFULLY(name);
+        addSuccess(message);
+        setScreenReaderMessage(message);
         setExportDownload({ name: listId, blob });
       },
     [addSuccess]
@@ -468,6 +472,7 @@ export const SharedLists = React.memo(() => {
 
   return (
     <>
+      <EuiScreenReaderLive>{screenReaderMessage}</EuiScreenReaderLive>
       <MissingDetectionsPrivilegesCallOut />
       <EuiPageHeader
         pageTitle={i18n.ALL_EXCEPTIONS}

From 996407f88d701458747b07b1fcbb5439138342a3 Mon Sep 17 00:00:00 2001
From: Hannah Brooks <hannah.brooks@elastic.co>
Date: Tue, 17 Mar 2026 16:17:21 -0400
Subject: [PATCH 2/2] make annoucement more assertive and add comment for info

---
 .../exceptions/pages/shared_lists/index.tsx       | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/x-pack/solutions/security/plugins/security_solution/public/exceptions/pages/shared_lists/index.tsx b/x-pack/solutions/security/plugins/security_solution/public/exceptions/pages/shared_lists/index.tsx
index bbb2b2a85276e..4b3d34f452113 100644
--- a/x-pack/solutions/security/plugins/security_solution/public/exceptions/pages/shared_lists/index.tsx
+++ b/x-pack/solutions/security/plugins/security_solution/public/exceptions/pages/shared_lists/index.tsx
@@ -210,7 +210,16 @@ export const SharedLists = React.memo(() => {
       (blob: Blob): void => {
         const message = i18n.EXCEPTION_LIST_EXPORTED_SUCCESSFULLY(name);
         addSuccess(message);
-        setScreenReaderMessage(message);
+        // If the same list is exported twice in a row, React won't re-render
+        // since state hasn't changed, so the live region won't re-announce.
+        // Clearing to '' first ensures VoiceOver sees a new change on the next frame.
+        setScreenReaderMessage((current) => {
+          if (current === message) {
+            requestAnimationFrame(() => setScreenReaderMessage(message));
+            return '';
+          }
+          return message;
+        });
         setExportDownload({ name: listId, blob });
       },
     [addSuccess]
@@ -472,7 +481,9 @@ export const SharedLists = React.memo(() => {
 
   return (
     <>
-      <EuiScreenReaderLive>{screenReaderMessage}</EuiScreenReaderLive>
+      <EuiScreenReaderLive aria-live="assertive" aria-atomic="true" focusRegionOnTextChange>
+        {screenReaderMessage}
+      </EuiScreenReaderLive>
       <MissingDetectionsPrivilegesCallOut />
       <EuiPageHeader
         pageTitle={i18n.ALL_EXCEPTIONS}