From 83eecbca491fa35ad8a306a583ef6886cf818234 Mon Sep 17 00:00:00 2001
From: Christian Grothoff <grothoff@gnunet.org>
Date: Wed, 8 Jul 2026 11:37:01 +0200
Subject: [PATCH] add NULL check

---
 src/microhttpd/response.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/microhttpd/response.c b/src/microhttpd/response.c
index 7eaf305d..70e2fd27 100644
--- a/src/microhttpd/response.c
+++ b/src/microhttpd/response.c
@@ -304,7 +304,8 @@ add_response_entry (struct MHD_Response *response,
 
   if (NULL == content)
     return MHD_NO;
-
+  if (NULL == header)
+    return MHD_NO;
   header_len = strlen (header);
   content_len = strlen (content);
   return add_response_entry_n (response, kind, header,