diff --git a/scanpipe/pipes/clamav.py b/scanpipe/pipes/clamav.py
index 78a8f45b70..9e4f5a4d40 100644
--- a/scanpipe/pipes/clamav.py
+++ b/scanpipe/pipes/clamav.py
@@ -23,6 +23,7 @@
 from pathlib import Path
 
 from django.conf import settings
+from django.core.exceptions import ObjectDoesNotExist
 
 import clamd
 
@@ -47,7 +48,19 @@ def scan_for_virus(project):
         status, reason = results
         resource_path = Path(resource_location).relative_to(project.codebase_path)
 
-        resource = project.codebaseresources.get(path=resource_path)
+        try:
+            resource = project.codebaseresources.get(path=str(resource_path))
+        except ObjectDoesNotExist:
+            project.add_error(
+                description="CodebaseResource not found for ClamAV result",
+                model="ScanForVirus",
+                details={
+                    "resource_location": resource_location,
+                    "resource_path": str(resource_path),
+                },
+            )
+            continue
+
         virus_report = {
             "calmav": {
                 "status": status,
diff --git a/scanpipe/tests/pipes/test_clamav.py b/scanpipe/tests/pipes/test_clamav.py
index 26e966b698..358338b8ff 100644
--- a/scanpipe/tests/pipes/test_clamav.py
+++ b/scanpipe/tests/pipes/test_clamav.py
@@ -67,3 +67,34 @@ def test_scanpipe_pipes_clamav_scan_for_virus(self, mock_multiscan):
             }
         }
         self.assertEqual(expected_virus_report_extra_data, resource1.extra_data)
+
+    @mock.patch("clamd.ClamdNetworkSocket.multiscan")
+    def test_scanpipe_pipes_clamav_scan_for_virus_missing_resource(self, mock_multiscan):
+        """Test that scan_for_virus handles missing CodebaseResource gracefully."""
+        project = Project.objects.create(name="project")
+        r1 = make_resource_file(project=project, path="existing.zip")
+
+        # Simulate ClamAV returning results for both existing and non-existing resources
+        mock_multiscan.return_value = {
+            r1.location: ("FOUND", "Win.Test.EICAR_HDB-1"),
+            str(project.codebase_path / "missing_file.exe"): ("FOUND", "Trojan.Test"),
+        }
+
+        # Should not raise an exception
+        clamav.scan_for_virus(project)
+
+        # Should have 2 error messages: one for virus, one for missing resource
+        messages = list(project.projectmessages.all())
+        self.assertEqual(2, len(messages))
+
+        # Check that missing resource error was logged
+        missing_resource_error = project.projectmessages.filter(
+            description="CodebaseResource not found for ClamAV result"
+        ).first()
+        self.assertIsNotNone(missing_resource_error)
+        self.assertEqual("missing_file.exe", missing_resource_error.details["resource_path"])
+
+        # Check that existing resource still got processed
+        virus_error = project.projectmessages.filter(description="Virus detected").first()
+        self.assertIsNotNone(virus_error)
+        self.assertEqual("existing.zip", virus_error.details["resource_path"])