From 383b72d47c74a55ae8b6e231da548f9280a4296a Mon Sep 17 00:00:00 2001
From: ready-research <72916209+ready-research@users.noreply.github.com>
Date: Mon, 30 Aug 2021 15:17:34 +0530
Subject: [PATCH] Security Fix for Prototype Pollution

Fix prototype pollution when path components are not strings
---
 index.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/index.js b/index.js
index d3335b7..6d0c712 100644
--- a/index.js
+++ b/index.js
@@ -18,6 +18,9 @@ const isUnsafeKey = key => {
 };
 
 const validateKey = key => {
+  if (typeof key !== 'string' && typeof key !== 'number') {
+    key = String(key)
+  }
   if (isUnsafeKey(key)) {
     throw new Error(`Cannot set unsafe key: "${key}"`);
   }