Issue #3334308: needsRehash always checks against PASSWORD_DEFAULT

src/Password/PhpPassword.php

@@ -81,7 +81,7 @@ public function needsRehash($hash) {
     // - The parameters of hashing engine were changed. For example the
     //   parameter 'password_hash_cost' (the hashing cost) has been increased in
     //   core.services.yml.
-    return password_needs_rehash($hash, PASSWORD_DEFAULT, $this->getOptions());
+    return password_needs_rehash($hash, $this->algorithm, $this->getOptions());
   }
 
   /**