diff --git a/disassembly/disassembly.js b/disassembly/disassembly.js
index 1775769bd918a5ef14798198ffc62a8d54830dd8..4d355741bb7fa228c9b0fe782842189c4841fac6 100644
--- a/disassembly/disassembly.js
+++ b/disassembly/disassembly.js
@@ -97,8 +97,15 @@ function checkElf(session_id, data) {
 function save(session_id, data) {
     try {
         // 假设 `decoder` 是已定义的 TextDecoder 实例
-        // 解析前端发送的 JSON 数据 
-        const { file_name, buffer_index, total_size, is_last, buffer } = JSON.parse(decoder.decode(data));;
+        const separatorIndex = data.indexOf('|'.charCodeAt(0));
+		// 提取 JSON 字符串长度部分
+        const jsonLengthStr = decoder.decode(data.subarray(0, separatorIndex));
+        const jsonLength = parseInt(jsonLengthStr, 10);
+		// 解析 JSON 字符串
+        const jsonStringBytes = data.subarray(separatorIndex + 1, separatorIndex + 1 + jsonLength);
+        const { file_name, buffer_index, total_size, is_last} = JSON.parse(decoder.decode(jsonStringBytes));
+        // 文件数据从 JSON 结束位置之后开始
+        const buffer = data.subarray(separatorIndex + 1 + jsonLength);
         logger.info(`save file, file name: ${file_name}, index: ${buffer_index}`);
 
         // 将 `buffer` 转换为 Uint8Array