diff --git a/git_gc.py b/git_gc.py
index 527adbe..719a4f2 100644
--- a/git_gc.py
+++ b/git_gc.py
@@ -6,7 +6,26 @@
 
 tmp_dir = "extract"
 with tarfile.open(archive, mode="r:gz") as tar:
- 	tar.extractall(tmp_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=numeric_owner) 
+      
+  
+  safe_extract(tar, tmp_dir)
 
 repo = git.Repo(os.path.join(tmp_dir, "app"))
 print(repo)