diff --git a/wp-includes/media.php b/wp-includes/media.php
index c640d47d02..2fc2e6e63a 100644
--- a/wp-includes/media.php
+++ b/wp-includes/media.php
@@ -3482,8 +3482,20 @@ function wp_audio_shortcode( $attr, $content = '' ) {
 
 	$attr_strings = array();
 
-	foreach ( $html_atts as $k => $v ) {
-		$attr_strings[] = $k . '="' . esc_attr( $v ) . '"';
+	foreach ( $html_atts as $attribute_name => $attribute_value ) {
+		if ( in_array( $attribute_name, array( 'loop', 'autoplay', 'muted' ), true ) && true === $attribute_value ) {
+			// Add boolean attributes without their value for true.
+			$attr_strings[] = esc_attr( $attribute_name );
+		} elseif ( 'preload' === $attribute_name && ! empty( $attribute_value ) ) {
+			// Handle the preload attribute with specific allowed values.
+			$allowed_preload_values = array( 'none', 'metadata', 'auto' );
+			if ( in_array( $attribute_value, $allowed_preload_values, true ) ) {
+				$attr_strings[] = sprintf( '%s="%s"', esc_attr( $attribute_name ), esc_attr( $attribute_value ) );
+			}
+		} elseif ( ! empty( $attribute_value ) ) {
+			// For non-boolean attributes, add them with their value.
+			$attr_strings[] = sprintf( '%s="%s"', esc_attr( $attribute_name ), esc_attr( $attribute_value ) );
+		}
 	}
 
 	$html = '';
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 9d39c3040d..813a2837b8 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.8-beta1-59953';
+$wp_version = '6.8-beta1-59954';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.