diff --git a/run_community_analyzer.py b/run_community_analyzer.py
index 04abedf..b6ab0ac 100644
--- a/run_community_analyzer.py
+++ b/run_community_analyzer.py
@@ -57,17 +57,20 @@ def main(argv: list[str] | None = None) -> None:
     toolbox_path = os.getenv("TOOLBOX_PATH", "/toolbox")
     output_path = os.path.join(toolbox_path, "analysis_results.json")
     artifacts_path = os.getenv("ARTIFACTS_PATH", "/artifacts")
+    issue_map_path = None
 
     parser = argparse.ArgumentParser("sarif_parser")
     parser.add_argument(
         "--analyzer",
         help="Which community analyzer to run. Example: 'kube-linter'",
-        required=True,
+        required=False,
     )
-    args = parser.parse_args(argv, namespace=CommunityAnalyzerArgs)
+    if argv:
+        args = parser.parse_args(argv, namespace=CommunityAnalyzerArgs)
+        # analyzer name is mandatory in case of community analyzers but not custom analyzers
+        if analyzer_name := args.analyzer:
+            issue_map_path = get_issue_map(analyzer_name)
 
-    analyzer_name = args.analyzer
-    issue_map_path = get_issue_map(analyzer_name)
     modified_files = get_files_to_analyze(code_path)
     run_sarif_parser(
         artifacts_path, output_path, issue_map_path, modified_files=modified_files
diff --git a/tests/test_community_analyzer.py b/tests/test_community_analyzer.py
index a5b3f99..6718284 100644
--- a/tests/test_community_analyzer.py
+++ b/tests/test_community_analyzer.py
@@ -181,6 +181,180 @@
     "extra_data": {},
 }
 
+expected_result_no_issue_map = {
+    "is_passed": False,
+    "issues": [
+        {
+            "issue_code": "no-read-only-root-fs",
+            "issue_text": 'container "kube-scheduler" does not have a read-only root file system\nobject: <no namespace>/test-release-kube-scheduler apps/v1, Kind=Deployment',
+            "location": {
+                "path": "charts/kube-scheduler/templates/deployment.yaml",
+                "position": {
+                    "begin": {"column": 1, "line": 1},
+                    "end": {"column": 1, "line": 1},
+                },
+            },
+        },
+        {
+            "issue_code": "run-as-non-root",
+            "issue_text": 'container "kube-scheduler" is not set to runAsNonRoot\nobject: <no namespace>/test-release-kube-scheduler apps/v1, Kind=Deployment',
+            "location": {
+                "path": "charts/kube-scheduler/templates/deployment.yaml",
+                "position": {
+                    "begin": {"column": 1, "line": 1},
+                    "end": {"column": 1, "line": 1},
+                },
+            },
+        },
+        {
+            "issue_code": "env-var-secret",
+            "issue_text": 'environment variable TASK_IMAGE_PULL_SECRET_NAME in container "runner" found\nobject: <no namespace>/test-release-runner apps/v1, Kind=Deployment',
+            "location": {
+                "path": "charts/runner/templates/deployment.yaml",
+                "position": {
+                    "begin": {"column": 1, "line": 1},
+                    "end": {"column": 1, "line": 1},
+                },
+            },
+        },
+        {
+            "issue_code": "env-var-secret",
+            "issue_text": 'environment variable TASK_ARTIFACT_SECRET_NAME in container "runner" found\nobject: <no namespace>/test-release-runner apps/v1, Kind=Deployment',
+            "location": {
+                "path": "charts/runner/templates/deployment.yaml",
+                "position": {
+                    "begin": {"column": 1, "line": 1},
+                    "end": {"column": 1, "line": 1},
+                },
+            },
+        },
+        {
+            "issue_code": "no-read-only-root-fs",
+            "issue_text": 'container "runner" does not have a read-only root file system\nobject: <no namespace>/test-release-runner apps/v1, Kind=Deployment',
+            "location": {
+                "path": "charts/runner/templates/deployment.yaml",
+                "position": {
+                    "begin": {"column": 1, "line": 1},
+                    "end": {"column": 1, "line": 1},
+                },
+            },
+        },
+        {
+            "issue_code": "run-as-non-root",
+            "issue_text": 'container "runner" is not set to runAsNonRoot\nobject: <no namespace>/test-release-runner apps/v1, Kind=Deployment',
+            "location": {
+                "path": "charts/runner/templates/deployment.yaml",
+                "position": {
+                    "begin": {"column": 1, "line": 1},
+                    "end": {"column": 1, "line": 1},
+                },
+            },
+        },
+        {
+            "issue_code": "no-read-only-root-fs",
+            "issue_text": 'container "runner-rqlite" does not have a read-only root file system\nobject: <no namespace>/test-release-runner-rqlite apps/v1, Kind=StatefulSet',
+            "location": {
+                "path": "charts/runner/templates/rqlite-statefulset.yaml",
+                "position": {
+                    "begin": {"column": 1, "line": 1},
+                    "end": {"column": 1, "line": 1},
+                },
+            },
+        },
+        {
+            "issue_code": "run-as-non-root",
+            "issue_text": 'container "runner-rqlite" is not set to runAsNonRoot\nobject: <no namespace>/test-release-runner-rqlite apps/v1, Kind=StatefulSet',
+            "location": {
+                "path": "charts/runner/templates/rqlite-statefulset.yaml",
+                "position": {
+                    "begin": {"column": 1, "line": 1},
+                    "end": {"column": 1, "line": 1},
+                },
+            },
+        },
+        {
+            "issue_code": "latest-tag",
+            "issue_text": 'The container "wget" is using an invalid container image, "busybox". Please use images that are not blocked by the `BlockList` criteria : [".*:(latest)$" "^[^:]*$" "(.*/[^:]+)$"]\nobject: <no namespace>/test-release-runner-test-connection /v1, Kind=Pod',
+            "location": {
+                "path": "charts/runner/templates/tests/test-connection.yaml",
+                "position": {
+                    "begin": {"column": 1, "line": 1},
+                    "end": {"column": 1, "line": 1},
+                },
+            },
+        },
+        {
+            "issue_code": "no-read-only-root-fs",
+            "issue_text": 'container "wget" does not have a read-only root file system\nobject: <no namespace>/test-release-runner-test-connection /v1, Kind=Pod',
+            "location": {
+                "path": "charts/runner/templates/tests/test-connection.yaml",
+                "position": {
+                    "begin": {"column": 1, "line": 1},
+                    "end": {"column": 1, "line": 1},
+                },
+            },
+        },
+        {
+            "issue_code": "run-as-non-root",
+            "issue_text": 'container "wget" is not set to runAsNonRoot\nobject: <no namespace>/test-release-runner-test-connection /v1, Kind=Pod',
+            "location": {
+                "path": "charts/runner/templates/tests/test-connection.yaml",
+                "position": {
+                    "begin": {"column": 1, "line": 1},
+                    "end": {"column": 1, "line": 1},
+                },
+            },
+        },
+        {
+            "issue_code": "unset-cpu-requirements",
+            "issue_text": 'container "wget" has cpu request 0\nobject: <no namespace>/test-release-runner-test-connection /v1, Kind=Pod',
+            "location": {
+                "path": "charts/runner/templates/tests/test-connection.yaml",
+                "position": {
+                    "begin": {"column": 1, "line": 1},
+                    "end": {"column": 1, "line": 1},
+                },
+            },
+        },
+        {
+            "issue_code": "unset-cpu-requirements",
+            "issue_text": 'container "wget" has cpu limit 0\nobject: <no namespace>/test-release-runner-test-connection /v1, Kind=Pod',
+            "location": {
+                "path": "charts/runner/templates/tests/test-connection.yaml",
+                "position": {
+                    "begin": {"column": 1, "line": 1},
+                    "end": {"column": 1, "line": 1},
+                },
+            },
+        },
+        {
+            "issue_code": "unset-memory-requirements",
+            "issue_text": 'container "wget" has memory request 0\nobject: <no namespace>/test-release-runner-test-connection /v1, Kind=Pod',
+            "location": {
+                "path": "charts/runner/templates/tests/test-connection.yaml",
+                "position": {
+                    "begin": {"column": 1, "line": 1},
+                    "end": {"column": 1, "line": 1},
+                },
+            },
+        },
+        {
+            "issue_code": "unset-memory-requirements",
+            "issue_text": 'container "wget" has memory limit 0\nobject: <no namespace>/test-release-runner-test-connection /v1, Kind=Pod',
+            "location": {
+                "path": "charts/runner/templates/tests/test-connection.yaml",
+                "position": {
+                    "begin": {"column": 1, "line": 1},
+                    "end": {"column": 1, "line": 1},
+                },
+            },
+        },
+    ],
+    "errors": [],
+    "metrics": [],
+    "extra_data": {},
+}
+
 
 def test_community_analyzer(tmp_path: Path) -> None:
     """Test for `run_community_analyzer.main()`, to test `issue_map.json` parsing."""
@@ -234,3 +408,57 @@ def test_community_analyzer(tmp_path: Path) -> None:
             issue["location"]["path"]
             == "charts/runner/templates/tests/test-connection.yaml"
         )
+
+
+def test_community_analyzer_without_issue_map(tmp_path: Path) -> None:
+    """Test for `run_community_analyzer.main()` when no analyzer is specified and thus `issue_map.json` is not there."""
+    code_path = "/code"
+    toolbox_path = tmp_path.as_posix()
+    artifacts_path = os.path.join(os.path.dirname(__file__), "test_artifacts")
+    analysis_config_path = os.path.join(toolbox_path, "analysis_config.json")
+    modified_files = extract_filepaths_from_deepsource_json(code_path, expected_result)
+    os.environ["CODE_PATH"] = code_path
+    os.environ["TOOLBOX_PATH"] = toolbox_path
+    os.environ["ARTIFACTS_PATH"] = artifacts_path
+
+    # Case: when analysis config is not present, it should raise an error.
+    with pytest.raises(ValueError) as exe:
+        run_community_analyzer.main()
+    assert (
+        str(exe.value) == f"Could not find analysis config at {analysis_config_path}."
+    )
+
+    # Case: all files from the report are present in the analysis config.
+    with temp_analysis_config(analysis_config_path, modified_files):
+        run_community_analyzer.main()
+
+    analysis_results = tmp_path / "analysis_results.json"
+    assert analysis_results.exists()
+
+    with open(analysis_results) as file:
+        result = json.load(file)
+
+    assert result == expected_result_no_issue_map
+
+    # Case: only a subset of files from the report are present in the analysis config.
+    # Note: There are 7 issues in this file in our report fixture.
+    # See `expected_result`.
+    modified_files = [
+        os.path.join(code_path, "charts/runner/templates/tests/test-connection.yaml"),
+    ]
+    with temp_analysis_config(analysis_config_path, modified_files):
+        run_community_analyzer.main()
+
+    analysis_results = tmp_path / "analysis_results.json"
+    assert analysis_results.exists()
+
+    with open(analysis_results) as file:
+        result = json.load(file)
+
+    assert len(result["issues"]) == 7
+
+    for issue in result["issues"]:
+        assert (
+            issue["location"]["path"]
+            == "charts/runner/templates/tests/test-connection.yaml"
+        )