diff --git a/picdat_util.py b/picdat_util.py
index fca5d54..3749a2c 100644
--- a/picdat_util.py
+++ b/picdat_util.py
@@ -300,7 +300,26 @@ def extract_tgz(dir_path, tgz_file, data_name_extension=None):
                 'for charts will be missing, such as node and cluster name.')
             asup_xml_header_file = None
 
-        tar.extractall(dir_path, members=tarmembers)
+        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, dir_path, members=tarmembers)
 
     if data_name_extension:
         os.rename(asup_data_file, asup_data_file + data_name_extension)
diff --git a/scripts/convert_ccma_to_json.py b/scripts/convert_ccma_to_json.py
index adf1a49..f520544 100644
--- a/scripts/convert_ccma_to_json.py
+++ b/scripts/convert_ccma_to_json.py
@@ -213,7 +213,26 @@ def unpack_tgz(destination_dir, tgz):
 
     try:
         with tarfile.open(tgz, 'r') as tar:
-            tar.extractall(destination_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, destination_dir)
 
         if 'CM-STATS-HOURLY-INFO.XML' in os.listdir(destination_dir) \
         and 'CM-STATS-HOURLY-DATA.XML' in os.listdir(destination_dir):