diff --git a/fitsmap/tests/helpers.py b/fitsmap/tests/helpers.py
index bb34318..08f7bce 100644
--- a/fitsmap/tests/helpers.py
+++ b/fitsmap/tests/helpers.py
@@ -60,7 +60,26 @@ def setup(with_data=False):
 
         def extract(f):
             with tarfile.open(with_test_path(f)) as f:
-                f.extractall(TEST_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(f, TEST_PATH)
 
         any(map(extract, compressed_files))