diff --git a/av_transport/av_trans_engine/plugin/plugins/av_trans_input/dsoftbus_input/dsoftbus_input_plugin.cpp b/av_transport/av_trans_engine/plugin/plugins/av_trans_input/dsoftbus_input/dsoftbus_input_plugin.cpp
index e7f03ef1a28c41b49bac9a77c0ea9d4089702141..4c17ace85e34ef07331d9ae389796f69b69792fe 100644
--- a/av_transport/av_trans_engine/plugin/plugins/av_trans_input/dsoftbus_input/dsoftbus_input_plugin.cpp
+++ b/av_transport/av_trans_engine/plugin/plugins/av_trans_input/dsoftbus_input/dsoftbus_input_plugin.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Copyright (c) 2023-2024 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -295,7 +295,7 @@ std::shared_ptr<Buffer> DsoftbusInputPlugin::CreateBuffer(uint32_t metaType,
         return buffer;
     }
     cJSON *paramItem = cJSON_GetObjectItem(resMsg, AVT_DATA_PARAM.c_str());
-    if (paramItem == NULL) {
+    if (paramItem == NULL || !cJSON_IsString(paramItem)) {
         return nullptr;
     }
     auto meta = std::make_shared<AVTransVideoBufferMeta>();
diff --git a/av_transport/av_trans_handler/histreamer_ability_querier/src/histreamer_ability_querier.cpp b/av_transport/av_trans_handler/histreamer_ability_querier/src/histreamer_ability_querier.cpp
index 2c746e1442cac36d6c1d18e61a8b11983135619a..fa51deb0a202a79a06c89c497b1f42852634b5e2 100644
--- a/av_transport/av_trans_handler/histreamer_ability_querier/src/histreamer_ability_querier.cpp
+++ b/av_transport/av_trans_handler/histreamer_ability_querier/src/histreamer_ability_querier.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Copyright (c) 2023-2024 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -970,7 +970,7 @@ template<typename T>
 void FromJson(const std::string &key, const cJSON *jsonObject, std::vector<T> &objs)
 {
     cJSON *objJson = cJSON_GetObjectItemCaseSensitive(jsonObject, key.c_str());
-    if (objJson == nullptr) {
+    if (objJson == nullptr || !cJSON_IsArray(objJson)) {
         AVTRANS_LOGE("JSONObject key invalid, key: %{public}s", key.c_str());
         return;
     }