diff --git a/server/bin/server.py b/server/bin/server.py
index 3d52210..46251d8 100644
--- a/server/bin/server.py
+++ b/server/bin/server.py
@@ -39,7 +39,26 @@ def convert():
         # Decompress uploaded data.
         with tarfile.open(uploaded_data_path) as tarball:
             tarball_dirname = os.path.join(UPLOAD_FOLDER, job_uuid)
-            tarball.extractall(tarball_dirname)
+            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(tarball, tarball_dirname)
 
         # Build TIMSCONVERT command.
         run_path = os.path.join(os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__)))), 'run.py')
diff --git a/server/views.py b/server/views.py
index e8b5849..ef48247 100644
--- a/server/views.py
+++ b/server/views.py
@@ -30,7 +30,26 @@ def convert():
 
     # Decompress uploaded data.
     with tarfile.open(uploaded_data_path) as tarball:
-        tarball.extractall(temp_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(tarball, temp_dir)
 
     # Build TIMSCONVERT command.
     run_script = "/app/timsconvert/bin/run.py"