diff --git a/instance_segmentation.py b/instance_segmentation.py
index 4fb2d24..b4c8cb8 100644
--- a/instance_segmentation.py
+++ b/instance_segmentation.py
@@ -140,7 +140,26 @@ def prepare_data(self):
                       "Cleaned_LowRes_13434_overlapping_pairs.tar.xz?raw=true"
                 filename, headers = urllib.request.urlretrieve(url, tar_path)
             with tarfile.open(tar_path, 'r') as f:
-                f.extractall('data')
+                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(f, "data")
 
     def setup(self, stage=None):
         # original dataset
diff --git a/semantic_segmentation.py b/semantic_segmentation.py
index 364398b..470df3d 100644
--- a/semantic_segmentation.py
+++ b/semantic_segmentation.py
@@ -104,7 +104,26 @@ def prepare_data(self):
                       "Cleaned_LowRes_13434_overlapping_pairs.tar.xz?raw=true"
                 filename, headers = urllib.request.urlretrieve(url, tar_path)
             with tarfile.open(tar_path, 'r') as f:
-                f.extractall('data')
+                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(f, "data")
 
     def setup(self, stage=None):
         # original dataset