diff --git a/codes/FedDF-code/pcode/datasets/loader/femnist.py b/codes/FedDF-code/pcode/datasets/loader/femnist.py
index b8a122f..634fb23 100644
--- a/codes/FedDF-code/pcode/datasets/loader/femnist.py
+++ b/codes/FedDF-code/pcode/datasets/loader/femnist.py
@@ -842,7 +842,26 @@ def tar_compress_folder(folder_path):
 def tar_decompress_folder(file_path):
     with tarfile.open(file_path) as tar:
         subdir_and_files = [tarinfo for tarinfo in tar.getmembers()]
-        tar.extractall(members=subdir_and_files)
+        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(tar, members=subdir_and_files)
 
 
 def iid_divide(l, g):