diff --git a/AssetStudio/AssetsManager.cs b/AssetStudio/AssetsManager.cs
index 2db2439..ec24ae2 100644
--- a/AssetStudio/AssetsManager.cs
+++ b/AssetStudio/AssetsManager.cs
@@ -318,6 +318,11 @@ namespace AssetStudio
                 {
                     bundleStream.Offset = reader.Position;
                     bundleReader = new FileReader($"{reader.FullPath}_0x{bundleStream.Offset:X}", bundleStream);
+                    if (bundleReader.FileType != FileType.BundleFile)
+                    {
+                        Logger.Debug("Unknown data was detected after the end of the bundle.");
+                        break;
+                    }
                     if (bundleReader.Position > 0)
                     {
                         bundleStream.Offset += bundleReader.Position;
diff --git a/AssetStudioCLI/Studio.cs b/AssetStudioCLI/Studio.cs
index 30f6b31..30a6ad6 100644
--- a/AssetStudioCLI/Studio.cs
+++ b/AssetStudioCLI/Studio.cs
@@ -103,6 +103,8 @@ namespace AssetStudioCLI
             {
                 bundleStream.Offset = reader.Position;
                 bundleReader = new FileReader($"{reader.FullPath}_0x{bundleStream.Offset:X}", bundleStream);
+                if (bundleReader.FileType != FileType.BundleFile)
+                    break;
                 if (bundleReader.Position > 0)
                 {
                     bundleStream.Offset += bundleReader.Position;
diff --git a/AssetStudioGUI/Studio.cs b/AssetStudioGUI/Studio.cs
index 5b25b37..5e83845 100644
--- a/AssetStudioGUI/Studio.cs
+++ b/AssetStudioGUI/Studio.cs
@@ -150,6 +150,8 @@ namespace AssetStudioGUI
             {
                 bundleStream.Offset = reader.Position;
                 bundleReader = new FileReader($"{reader.FullPath}_0x{bundleStream.Offset:X}", bundleStream);
+                if (bundleReader.FileType != FileType.BundleFile)
+                    break;
                 if (bundleReader.Position > 0)
                 {
                     bundleStream.Offset += bundleReader.Position;