diff --git a/dpgen/auto_test/lib/RemoteJob.py b/dpgen/auto_test/lib/RemoteJob.py
index d976b4253..e66df1351 100644
--- a/dpgen/auto_test/lib/RemoteJob.py
+++ b/dpgen/auto_test/lib/RemoteJob.py
@@ -191,7 +191,26 @@ def _get_files(self,
         cwd = os.getcwd()
         os.chdir(self.local_root)
         with tarfile.open(of, "r:gz") as tar:
-            tar.extractall()
+            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)
         os.chdir(cwd)        
         # cleanup
         os.remove(to_f)
diff --git a/dpgen/dispatcher/SSHContext.py b/dpgen/dispatcher/SSHContext.py
index aca7d8368..7f614f31b 100644
--- a/dpgen/dispatcher/SSHContext.py
+++ b/dpgen/dispatcher/SSHContext.py
@@ -333,7 +333,26 @@ def _get_files(self,
         cwd = os.getcwd()
         os.chdir(self.local_root)
         with tarfile.open(of, "r:gz") as tar:
-            tar.extractall()
+            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)
         os.chdir(cwd)        
         # cleanup
         os.remove(to_f)
diff --git a/dpgen/remote/RemoteJob.py b/dpgen/remote/RemoteJob.py
index 4cdc76e9c..992fb82f4 100644
--- a/dpgen/remote/RemoteJob.py
+++ b/dpgen/remote/RemoteJob.py
@@ -288,7 +288,26 @@ def _get_files(self,
         cwd = os.getcwd()
         os.chdir(self.local_root)
         with tarfile.open(of, "r:gz") as tar:
-            tar.extractall()
+            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)
         os.chdir(cwd)        
         # cleanup
         os.remove(to_f)