diff --git a/apps/files_sharing/lib/Controller/ShareController.php b/apps/files_sharing/lib/Controller/ShareController.php
index 3669d8fda4..f874952690 100644
--- a/apps/files_sharing/lib/Controller/ShareController.php
+++ b/apps/files_sharing/lib/Controller/ShareController.php
@@ -204,6 +204,7 @@ class ShareController extends Controller {
 	private function linkShareAuth(\OCP\Share\IShare $share, $password = null) {
 		if ($password !== null) {
 			if ($this->shareManager->checkPassword($share, $password)) {
+				$this->session->regenerateId();
 				$this->session->set('public_link_authenticated', (string)$share->getId());
 			} else {
 				$this->emitAccessShareHook($share, 403, 'Wrong password');