diff --git a/wp-includes/class-http.php b/wp-includes/class-http.php
index 914aa213f4..5a3075846c 100644
--- a/wp-includes/class-http.php
+++ b/wp-includes/class-http.php
@@ -363,6 +363,9 @@ class WP_Http {
 			}
 		}
 
+		// Avoid issues where mbstring.func_overload is enabled
+		mbstring_binary_safe_encoding();
+
 		try {
 			$requests_response = Requests::request( $url, $headers, $data, $type, $options );
 
@@ -377,6 +380,8 @@ class WP_Http {
 			$response = new WP_Error( 'http_request_failed', $e->getMessage() );
 		}
 
+		reset_mbstring_encoding();
+
 		/**
 		 * Fires after an HTTP API response is received and before the response is returned.
 		 *
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 65694c6f9a..d6aa295af2 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.6.2-alpha-38728';
+$wp_version = '4.6.2-alpha-38895';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.