diff --git a/src/plugins/http/src/httpUtil.c b/src/plugins/http/src/httpUtil.c
index 399a33954d5670a7e928f856a898dcde1e4ac4eb..a8031d3fd85714d43735c5f18a60c6c388a7d69b 100644
--- a/src/plugins/http/src/httpUtil.c
+++ b/src/plugins/http/src/httpUtil.c
@@ -237,6 +237,11 @@ void httpFreeMultiCmds(HttpContext *pContext) {
 JsonBuf *httpMallocJsonBuf(HttpContext *pContext) {
   if (pContext->jsonBuf == NULL) {
     pContext->jsonBuf = (JsonBuf *)malloc(sizeof(JsonBuf));
+    if (pContext->jsonBuf == NULL) {
+      return NULL;
+    }
+
+    memset(pContext->jsonBuf, 0, sizeof(JsonBuf));
   }
 
   if (!pContext->jsonBuf->pContext) {