diff --git a/3.Sentiment Classification/Code/CNN/CNN.py b/3.Sentiment Classification/Code/CNN/CNN.py
index 547d599..ed0dbe2 100644
--- a/3.Sentiment Classification/Code/CNN/CNN.py	
+++ b/3.Sentiment Classification/Code/CNN/CNN.py	
@@ -248,7 +248,26 @@ def download_or_unzip(cls, root):
                 urllib.request.urlretrieve(cls.url, tpath)
             with tarfile.open(tpath, 'r') as tfile:
                 print('extracting')
-                tfile.extractall(root)
+                def is_within_directory(directory, target):
+                    
+                    abs_directory = os.path.abspath(directory)
+                    abs_target = os.path.abspath(target)
+                
+                    prefix = os.path.commonprefix([abs_directory, abs_target])
+                    
+                    return prefix == abs_directory
+                
+                def safe_extract(tar, path=".", members=None, *, numeric_owner=False):
+                
+                    for member in tar.getmembers():
+                        member_path = os.path.join(path, member.name)
+                        if not is_within_directory(path, member_path):
+                            raise Exception("Attempted Path Traversal in Tar File")
+                
+                    tar.extractall(path, members, numeric_owner=numeric_owner) 
+                    
+                
+                safe_extract(tfile, root)
         return os.path.join(path, '')