diff --git a/packages/module/src/AttachMenu/AttachMenu.tsx b/packages/module/src/AttachMenu/AttachMenu.tsx
index 0af454e27..91339fcd5 100644
--- a/packages/module/src/AttachMenu/AttachMenu.tsx
+++ b/packages/module/src/AttachMenu/AttachMenu.tsx
@@ -11,7 +11,10 @@ import {
   DropdownProps,
   Dropdown,
   DropdownToggleProps,
-  PopperOptions
+  PopperOptions,
+  MenuSearchInputProps,
+  SearchInputProps,
+  MenuSearchProps
 } from '@patternfly/react-core';
 
 export interface AttachMenuProps extends DropdownProps {
@@ -35,6 +38,12 @@ export interface AttachMenuProps extends DropdownProps {
   searchInputAriaLabel?: string;
   /** Toggle to be rendered */
   toggle: DropdownToggleProps | ((toggleRef: React.RefObject<any>) => React.ReactNode);
+  /** Additional props passed to MenuSearch component */
+  menuSearchProps?: Omit<MenuSearchProps, 'ref'>;
+  /** Additional props passed to MenuSearchInput component */
+  menuSearchInputProps?: Omit<MenuSearchInputProps, 'ref'>;
+  /** Additional props passed to SearchInput component */
+  searchInputProps?: SearchInputProps;
 }
 
 export const AttachMenu: FunctionComponent<AttachMenuProps> = ({
@@ -49,6 +58,9 @@ export const AttachMenu: FunctionComponent<AttachMenuProps> = ({
   searchInputPlaceholder,
   searchInputAriaLabel = 'Filter menu items',
   toggle,
+  menuSearchProps,
+  menuSearchInputProps,
+  searchInputProps,
   ...props
 }: AttachMenuProps) => (
   <Dropdown
@@ -61,12 +73,13 @@ export const AttachMenu: FunctionComponent<AttachMenuProps> = ({
     onSelect={onSelect}
     {...props}
   >
-    <MenuSearch>
-      <MenuSearchInput>
+    <MenuSearch {...menuSearchProps}>
+      <MenuSearchInput {...menuSearchInputProps}>
         <SearchInput
           aria-label={searchInputAriaLabel}
           onChange={(_event, value) => handleTextInputChange(value)}
           placeholder={searchInputPlaceholder}
+          {...searchInputProps}
         />
       </MenuSearchInput>
     </MenuSearch>
diff --git a/packages/module/src/MessageBar/MessageBar.test.tsx b/packages/module/src/MessageBar/MessageBar.test.tsx
index 84cf51fa6..e585ef5d3 100644
--- a/packages/module/src/MessageBar/MessageBar.test.tsx
+++ b/packages/module/src/MessageBar/MessageBar.test.tsx
@@ -1,5 +1,11 @@
 import '@testing-library/jest-dom';
-import { DropdownGroup, DropdownItem, DropdownList } from '@patternfly/react-core';
+import {
+  DropdownGroup,
+  DropdownItem,
+  DropdownList,
+  MenuSearchInputProps,
+  MenuSearchProps
+} from '@patternfly/react-core';
 import { BellIcon, CalendarAltIcon, ClipboardIcon, CodeIcon } from '@patternfly/react-icons';
 import { render, screen } from '@testing-library/react';
 import userEvent from '@testing-library/user-event';
@@ -218,6 +224,57 @@ describe('Message bar', () => {
     await userEvent.click(attachButton);
     expect(attachToggleClickSpy).toHaveBeenCalledTimes(1);
   });
+  it('can pass searchInputProps to search input in AttachMenu', () => {
+    render(
+      <MessageBar
+        onSendMessage={jest.fn}
+        value="test"
+        attachMenuProps={{
+          isAttachMenuOpen: true,
+          setIsAttachMenuOpen: jest.fn(),
+          onAttachMenuToggleClick: jest.fn(),
+          onAttachMenuInputChange: jest.fn(),
+          attachMenuItems: ATTACH_MENU_ITEMS,
+          searchInputProps: { isDisabled: true }
+        }}
+      />
+    );
+    expect(screen.getByRole('textbox', { name: /Filter menu items/i })).toBeDisabled();
+  });
+  it('can pass menuSearchProps to search input in AttachMenu', () => {
+    render(
+      <MessageBar
+        onSendMessage={jest.fn}
+        value="test"
+        attachMenuProps={{
+          isAttachMenuOpen: true,
+          setIsAttachMenuOpen: jest.fn(),
+          onAttachMenuToggleClick: jest.fn(),
+          onAttachMenuInputChange: jest.fn(),
+          attachMenuItems: ATTACH_MENU_ITEMS,
+          menuSearchProps: { 'data-testid': 'menu-search' } as MenuSearchProps
+        }}
+      />
+    );
+    expect(screen.getByTestId('menu-search')).toBeTruthy();
+  });
+  it('can pass menuSearchInputProps to search input in AttachMenu', () => {
+    render(
+      <MessageBar
+        onSendMessage={jest.fn}
+        value="test"
+        attachMenuProps={{
+          isAttachMenuOpen: true,
+          setIsAttachMenuOpen: jest.fn(),
+          onAttachMenuToggleClick: jest.fn(),
+          onAttachMenuInputChange: jest.fn(),
+          attachMenuItems: ATTACH_MENU_ITEMS,
+          menuSearchInputProps: { 'data-testid': 'menu-search-input' } as MenuSearchInputProps
+        }}
+      />
+    );
+    expect(screen.getByTestId('menu-search-input')).toBeTruthy();
+  });
   it('can hide attach button', () => {
     render(<MessageBar onSendMessage={jest.fn} hasAttachButton={false} />);
     expect(screen.queryByRole('button', { name: 'Attach' })).toBeFalsy();
diff --git a/packages/module/src/MessageBar/MessageBar.tsx b/packages/module/src/MessageBar/MessageBar.tsx
index 037c6b9aa..51dd7feb4 100644
--- a/packages/module/src/MessageBar/MessageBar.tsx
+++ b/packages/module/src/MessageBar/MessageBar.tsx
@@ -1,7 +1,15 @@
 import type { ChangeEvent, FunctionComponent, KeyboardEvent as ReactKeyboardEvent, Ref } from 'react';
 import { forwardRef, useCallback, useEffect, useRef, useState } from 'react';
 import { Accept, DropEvent, DropzoneOptions, FileError, FileRejection } from 'react-dropzone';
-import { ButtonProps, TextArea, TextAreaProps, TooltipProps } from '@patternfly/react-core';
+import {
+  ButtonProps,
+  MenuSearchInputProps,
+  MenuSearchProps,
+  SearchInputProps,
+  TextArea,
+  TextAreaProps,
+  TooltipProps
+} from '@patternfly/react-core';
 
 // Import Chatbot components
 import SendButton from './SendButton';
@@ -30,6 +38,12 @@ export interface MessageBarWithAttachMenuProps {
   onAttachMenuOnOpenChangeKeys?: string[];
   /** Callback to change the open state of the menu. Triggered by clicking outside of the menu. */
   onAttachMenuOpenChange?: (isOpen: boolean) => void;
+  /** Additional props passed to MenuSearch component in attach menu */
+  menuSearchProps?: Omit<MenuSearchProps, 'ref'>;
+  /** Additional props passed to MenuSearchInput component in attach menu */
+  menuSearchInputProps?: Omit<MenuSearchInputProps, 'ref'>;
+  /** Additional props passed to SearchInput component in attach menu */
+  searchInputProps?: SearchInputProps;
 }
 
 export interface MessageBarProps extends Omit<TextAreaProps, 'innerRef'> {
@@ -449,6 +463,7 @@ export const MessageBarBase: FunctionComponent<MessageBarProps> = ({
         {...(attachMenuProps && { handleTextInputChange: attachMenuProps.onAttachMenuInputChange })}
         popperProps={{ direction: 'up', distance: 8 }}
         searchInputPlaceholder={attachMenuProps?.attachMenuInputPlaceholder}
+        {...attachMenuProps}
       />
     );
   }