diff --git a/summarize/nnsum/summarization-datasets/preprocess_ami.py b/summarize/nnsum/summarization-datasets/preprocess_ami.py
index a412c9f..dbbfb03 100644
--- a/summarize/nnsum/summarization-datasets/preprocess_ami.py
+++ b/summarize/nnsum/summarization-datasets/preprocess_ami.py
@@ -42,7 +42,29 @@ def main():
         print("Extracting data... ", end="", flush=True)
         f.seek(0)
         with tarfile.open(fileobj=f, mode='r:gz') as tf:
-            tf.extractall(args.data_dir)
+            
+            import os
+            
+            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(tf, args.data_dir)
         print(" done!")
 
 if __name__ == "__main__":
diff --git a/summarize/nnsum/summarization-datasets/preprocess_pubmed.py b/summarize/nnsum/summarization-datasets/preprocess_pubmed.py
index 3372ab7..4c5c223 100644
--- a/summarize/nnsum/summarization-datasets/preprocess_pubmed.py
+++ b/summarize/nnsum/summarization-datasets/preprocess_pubmed.py
@@ -41,7 +41,29 @@ def main():
         print("Extracting data... ", end="", flush=True)
         f.seek(0)
         with tarfile.open(fileobj=f, mode='r:gz') as tf:
-            tf.extractall(args.data_dir)
+            
+            import os
+            
+            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(tf, args.data_dir)
         print(" done!")
 
 if __name__ == "__main__":