diff --git a/src/octoprint/server/api/languages.py b/src/octoprint/server/api/languages.py
index 1d9c7e9..8e54757 100755
--- a/src/octoprint/server/api/languages.py
+++ b/src/octoprint/server/api/languages.py
@@ -142,7 +142,26 @@ def _unpack_uploaded_tarball(path, target):
 		map(_validate_archive_name, tar.getmembers())
 
 		# unpack everything
-		tar.extractall(target)
+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, target)
 
 def _validate_archive_name(name):
 	if name.startswith("/") or ".." in name: