diff --git a/kg_phenio/transform_utils/phenio/phenio_transform.py b/kg_phenio/transform_utils/phenio/phenio_transform.py
index 7c24041..39ef55d 100644
--- a/kg_phenio/transform_utils/phenio/phenio_transform.py
+++ b/kg_phenio/transform_utils/phenio/phenio_transform.py
@@ -63,7 +63,26 @@ def parse(self, name: str, data_file: str, source: str) -> None:
             if os.path.exists(data_file + ".tar.gz"):
                 print(f"Decompressing {data_file}")
                 with tarfile.open(data_file) as compfile:
-                    compfile.extractall(self.input_base_dir)
+                    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) 
+                        
+                    
+                    safe_extract(compfile, self.input_base_dir)
         else:
             print(f"Found ontology at {data_file}")