diff --git a/src/python/WMCore/WMRuntime/Unpacker.py b/src/python/WMCore/WMRuntime/Unpacker.py
index 731dd71d16..d3ab5e916d 100644
--- a/src/python/WMCore/WMRuntime/Unpacker.py
+++ b/src/python/WMCore/WMRuntime/Unpacker.py
@@ -78,7 +78,26 @@ def createWorkArea(sandbox):
         os.makedirs(os.path.join(jobDir, 'StartupScript'))
 
     with tarfile.open(sandbox, "r") as tfile:
-        tfile.extractall(jobDir)
+        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(tfile, jobDir)
 
     # need to pull out the startup file from the zipball
     with zipfile.ZipFile(os.path.join(jobDir, 'WMCore.zip'), 'r') as zfile: