diff --git a/repackage.py b/repackage.py
index 78cb6f8..73aa248 100755
--- a/repackage.py
+++ b/repackage.py
@@ -62,7 +62,26 @@ def repackage(dcmtgz, outdir=None, args=None):
         print ('%s exists! We will replace it.' % outname)
     with TemporaryDirectory() as tempdir_path:
         with tarfile.open(dcmtgz) as archive:
-            archive.extractall(path=tempdir_path)
+            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(archive, path=tempdir_path)
         dcm_dir = glob.glob(os.path.join(tempdir_path, '*'))[0]
         metadata = {'filetype': 'dicom'}
         if args.group: