From f6e7c6ff4d69229373e49e51168c5f0acaba4d45 Mon Sep 17 00:00:00 2001
From: Piotr Pauksztelo <piotr.pauksztelo@fkie.fraunhofer.de>
Date: Thu, 5 Dec 2024 13:44:21 +0100
Subject: [PATCH] Refactor fix of FilterExpression to prevent incorrect
 matching

---
 logprep/filter/expression/filter_expression.py | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/logprep/filter/expression/filter_expression.py b/logprep/filter/expression/filter_expression.py
index 3936250ec..31153ab99 100644
--- a/logprep/filter/expression/filter_expression.py
+++ b/logprep/filter/expression/filter_expression.py
@@ -85,12 +85,11 @@ def _get_value(key: List[str], document: dict) -> Any:
 
         current = document
         for item in key:
+            if not isinstance(current, dict):
+                raise KeyDoesNotExistError
             if item not in current:
                 raise KeyDoesNotExistError
-            try:
-                current = current[item]
-            except TypeError as error:
-                raise KeyDoesNotExistError from error
+            current = current[item]
         return current
 
     def __eq__(self, other):