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fix(helm): Check HELM_NAMESPACE env var in CKV_K8S_21 #7355

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Merged
merged 4 commits into from
Oct 29, 2025
+17 −0
Merged

fix(helm): Check HELM_NAMESPACE env var in CKV_K8S_21 #7355

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3c888cb
Check HELM_NAMESPACE env var in CKV_K8S_21
inbalavital Oct 23, 2025
9a579af
Add test
inbalavital Oct 29, 2025
efcb2ce
Remove HELM_NAMESPACE env var after test
inbalavital Oct 29, 2025
4a11253
Use mock patch
inbalavital Oct 29, 2025
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3 changes: 3 additions & 0 deletions checkov/kubernetes/checks/resource/k8s/DefaultNamespace.py
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
from __future__ import annotations

import os
from typing import Any

from checkov.common.models.enums import CheckCategories, CheckResult
Expand Down Expand Up @@ -37,6 +38,8 @@ def scan_spec_conf(self, conf: dict[str, Any]) -> CheckResult:
if metadata:
if "namespace" in metadata and metadata["namespace"] != "default":
return CheckResult.PASSED
if os.getenv('HELM_NAMESPACE') and os.getenv('HELM_NAMESPACE') != "default":
return CheckResult.PASSED

# If namespace not defined it is default -> Ignore default Service account and kubernetes service
if conf["kind"] == "ServiceAccount" and metadata["name"] == "default":
Expand Down
13 changes: 13 additions & 0 deletions tests/kubernetes/checks/test_DefaultNamespace.py
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Expand Up @@ -21,6 +21,19 @@ def test_summary(self):
self.assertEqual(summary['skipped'], 0)
self.assertEqual(summary['parsing_errors'], 0)

def test_summary_with_env_var(self):
runner = Runner()
current_dir = os.path.dirname(os.path.realpath(__file__))
os.environ['HELM_NAMESPACE'] = 'non-default'
test_files_dir = current_dir + "/example_DefaultNamespace"
report = runner.run(root_folder=test_files_dir,runner_filter=RunnerFilter(checks=[check.id]))
summary = report.get_summary()

self.assertEqual(summary['passed'], 11)
self.assertEqual(summary['failed'], 0)
self.assertEqual(summary['skipped'], 0)
self.assertEqual(summary['parsing_errors'], 0)


if __name__ == '__main__':
unittest.main()
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