diff --git a/modelaudit/cli.py b/modelaudit/cli.py
index 499c4de80..f76643bae 100644
--- a/modelaudit/cli.py
+++ b/modelaudit/cli.py
@@ -952,6 +952,18 @@ def scan_command(
     # This prevents FileNotFoundError when URLs are downloaded to local paths
     scanned_paths: list[str] = []
 
+    def _track_streaming_paths_for_sbom(streaming_result: ModelAuditResultModel, fallback_path: str) -> None:
+        """Track concrete streamed artifact paths so SBOM includes all scanned components."""
+        added_path = False
+        for asset in streaming_result.assets:
+            if asset.path:
+                scanned_paths.append(asset.path)
+                added_path = True
+
+        # Fallback keeps previous behavior if no assets were recorded.
+        if not added_path:
+            scanned_paths.append(fallback_path)
+
     # Track temporary directories to clean up after SBOM generation
     temp_dirs_to_cleanup: list[str] = []
 
@@ -1102,6 +1114,9 @@ def scan_command(
                             # Merge streaming results into audit_result
                             audit_result.aggregate_scan_result(streaming_result.model_dump())
 
+                            # Track streamed artifact paths so SBOM includes all components.
+                            _track_streaming_paths_for_sbom(streaming_result, path)
+
                             # Record download/scan completion for streaming mode
                             download_duration = time.time() - download_start
                             record_download_completed("huggingface", download_duration, 0, path)
@@ -1203,6 +1218,9 @@ def scan_command(
                                 cache_dir=final_cache_dir,
                             )
 
+                            # Track streamed artifact paths so SBOM includes all components.
+                            _track_streaming_paths_for_sbom(streaming_result, path)
+
                             # Merge streaming results
                             audit_result.aggregate_scan_result(streaming_result.model_dump())
 
@@ -1356,6 +1374,9 @@ def scan_command(
                                 cache_dir=final_cache_dir,
                             )
 
+                            # Track streamed artifact paths so SBOM includes all components.
+                            _track_streaming_paths_for_sbom(streaming_result, path)
+
                             # Merge streaming results
                             audit_result.aggregate_scan_result(streaming_result.model_dump())
 
@@ -1685,8 +1706,8 @@ def enhanced_progress_callback(message, percentage):
                         elif show_styled_output:
                             click.echo(style_text("✅ Streaming scan complete", fg="green", bold=True))
 
-                        # Track the scanned path for SBOM
-                        scanned_paths.append(actual_path)
+                        # Track streamed artifact paths so SBOM includes all components.
+                        _track_streaming_paths_for_sbom(streaming_result, actual_path)
 
                         # Skip normal scanning flow - continue to next path
                         continue
diff --git a/tests/test_cli.py b/tests/test_cli.py
index e4277821d..2f227077b 100644
--- a/tests/test_cli.py
+++ b/tests/test_cli.py
@@ -1,7 +1,8 @@
 import json
 import os
 import re
-from unittest.mock import patch
+from pathlib import Path
+from unittest.mock import Mock, patch
 
 import pytest
 from click.testing import CliRunner
@@ -775,6 +776,63 @@ def file_generator():
         pytest.fail("Output is not valid JSON")
 
 
+@patch("modelaudit.cli.is_huggingface_url")
+@patch("modelaudit.utils.sources.huggingface.download_model_streaming")
+@patch("modelaudit.core.scan_model_streaming")
+def test_scan_huggingface_streaming_sbom_contains_all_components(
+    mock_scan_streaming: Mock, mock_download_streaming: Mock, mock_is_hf_url: Mock, tmp_path: Path
+) -> None:
+    """Regression test for issue #671: --stream should still produce full SBOM components."""
+    mock_is_hf_url.return_value = True
+
+    # The generator itself is not consumed in this test because scan_model_streaming is mocked.
+    def file_generator():
+        yield (tmp_path / "model-00001-of-00002.safetensors", False)
+        yield (tmp_path / "model-00002-of-00002.safetensors", True)
+
+    mock_download_streaming.return_value = file_generator()
+
+    streamed_assets = [
+        {
+            "path": str(tmp_path / "model-00001-of-00002.safetensors"),
+            "type": "safetensors",
+            "size": 123,
+        },
+        {
+            "path": str(tmp_path / "model-00002-of-00002.safetensors"),
+            "type": "safetensors",
+            "size": 456,
+        },
+    ]
+    mock_scan_streaming.return_value = create_mock_scan_result(
+        bytes_scanned=579,
+        files_scanned=2,
+        assets=streamed_assets,
+    )
+
+    sbom_file = tmp_path / "streaming_sbom.json"
+    runner = CliRunner()
+    result = runner.invoke(
+        cli,
+        [
+            "scan",
+            "--stream",
+            "--sbom",
+            str(sbom_file),
+            "https://huggingface.co/test/model",
+        ],
+    )
+
+    assert result.exit_code == 0
+    assert sbom_file.exists()
+
+    sbom_json = json.loads(sbom_file.read_text(encoding="utf-8"))
+    component_names = {component["name"] for component in sbom_json.get("components", [])}
+
+    assert "model-00001-of-00002.safetensors" in component_names
+    assert "model-00002-of-00002.safetensors" in component_names
+
+
 @patch("modelaudit.cli.is_huggingface_url")
 @patch("modelaudit.utils.sources.huggingface.download_model_streaming")
 @patch("modelaudit.core.scan_model_streaming")