diff --git a/changelog/unreleased/kong/fix-reports-uninitialized-variable-in-400.yml b/changelog/unreleased/kong/fix-reports-uninitialized-variable-in-400.yml
new file mode 100644
index 000000000000..fe7dddb687f2
--- /dev/null
+++ b/changelog/unreleased/kong/fix-reports-uninitialized-variable-in-400.yml
@@ -0,0 +1,4 @@
+message: |
+  Fixed an issue where trigger a report with an uninitialized variable in the 400 abnormal traffic.
+type: bugfix
+scope: Core