diff --git a/.github/workflows/scheduled-security-scan.yml b/.github/workflows/scheduled-security-scan.yml
index 6b6a90aa36..16a989c0d3 100644
--- a/.github/workflows/scheduled-security-scan.yml
+++ b/.github/workflows/scheduled-security-scan.yml
@@ -118,6 +118,8 @@ jobs:
           persist-credentials: false
       - name: Trivy filesystem scan
         uses: aquasecurity/trivy-action@a9c7b0f06e461e9d4b4d1711f154ee024b8d7ab8 # v0.36.0
+        env:
+          TRIVY_FILE_PATTERNS: 'pip:requirements-.*\.txt'
         with:
           scan-type: fs
           scan-ref: .
diff --git a/.github/workflows/security-scan.yml b/.github/workflows/security-scan.yml
index 500e22b4ab..df5a6e30a8 100644
--- a/.github/workflows/security-scan.yml
+++ b/.github/workflows/security-scan.yml
@@ -548,6 +548,8 @@ jobs:
           echo "SECURITY_CHECKOUT scanner=trivy-fs revision=head repository=${EXPECTED_CHECKOUT_REPOSITORY} expected_sha=${EXPECTED_CHECKOUT_SHA} actual_sha=${actual_sha}"
       - name: Trivy filesystem scan
         uses: aquasecurity/trivy-action@a9c7b0f06e461e9d4b4d1711f154ee024b8d7ab8 # v0.36.0
+        env:
+          TRIVY_FILE_PATTERNS: 'pip:requirements-.*\.txt'
         with:
           scan-type: fs
           scan-ref: .
diff --git a/docs/doctoring/trivy-custom-requirements-manifest-coverage.md b/docs/doctoring/trivy-custom-requirements-manifest-coverage.md
new file mode 100644
index 0000000000..c91b1cc8c2
--- /dev/null
+++ b/docs/doctoring/trivy-custom-requirements-manifest-coverage.md
@@ -0,0 +1,42 @@
+# Trivy 사용자 정의 requirements manifest 탐지 범위
+
+상태: 필수 workflow와 주기 workflow가 protected `main`에 반영되기 전까지
+`active_pr`, 반영된 뒤에는 `implemented_on_protected_main`.
+
+## 원인과 수리
+
+Trivy 기본 pip analyzer는 생성된 파일이나 용도별로 이름 붙인
+`requirements-*.txt`를 모두 찾지 못한다. Trivy 0.74.0으로 Naruon merge-ref를
+검사했을 때 기본 탐지는 dependency manifest 4개를 찾았고, pip pattern을
+추가한 뒤에는 11개를 찾았다. 확장 검사는
+`requirements-strix-ci-hashes.txt`의 `CVE-2026-69244`를 드러냈다. 설치된
+aiohttp 3.14.1은 영향받으며 3.14.3에서 수정됐다.
+
+중앙의 두 filesystem scan owner는 pinned Trivy action step에
+`TRIVY_FILE_PATTERNS=pip:requirements-.*\.txt`를 직접 설정한다. 검사 대상
+저장소의 configuration file이 아니라 trusted workflow 설정이다. Trivy의
+기본 탐지는 유지하면서 사용자 정의 pip manifest 탐지만 추가한다. 따라서
+필수 PR 검사와 default branch 주기 backstop은 workflow, job, step, scanner
+호출을 늘리지 않고 같은 manifest 경계를 사용한다.
+
+severity 집합, 수정판이 없는 취약점 처리 정책, SARIF를 보존하기 위한 scanner
+exit 0, hard-fail SARIF parser, upload 동작은 바꾸지 않았다.
+
+## 검증 경계
+
+회귀 계약은 기존 action 호출 두 곳의 실제 `env.TRIVY_FILE_PATTERNS` 값을
+검사하고, pinned action이 지원하지 않는 `with.file-patterns` 입력이 없음을
+확인한다. 별도의 로컬 Trivy 0.74.0 fixture 검사는 기본 결과에
+`requirements-strix-ci-hashes.txt`가 없고 환경값을 설정한 결과에는 있음을
+실증한다. protected `main`과 consumer merge-ref 실행은 여전히 필요한 runtime
+증거다.
+
+## 참고문헌
+
+Aqua Security. (2026). *Customizing file handling*. Trivy documentation
+v0.74.0, “Filtering”.
+https://github.com/aquasecurity/trivy/blob/v0.74.0/docs/guide/configuration/skipping.md
+
+aiohttp project. (2026). *Out-of-bounds heap read in C HTTP response parser may
+lead to DoS* (GHSA-cq5v-8q36-5273; CVE-2026-69244).
+https://github.com/aio-libs/aiohttp/security/advisories/GHSA-cq5v-8q36-5273
diff --git a/tests/test_code_scanning_required_workflow_contract.py b/tests/test_code_scanning_required_workflow_contract.py
index 19933303d8..f498a7edfa 100644
--- a/tests/test_code_scanning_required_workflow_contract.py
+++ b/tests/test_code_scanning_required_workflow_contract.py
@@ -2,6 +2,8 @@
 
 from pathlib import Path
 
+import pytest
+
 from scripts.ci import audit_central_required_workflows as audit
 
 
@@ -38,6 +40,38 @@ def test_consolidated_security_scan_preserves_osv_and_scorecard_evidence() -> No
     assert "Upload Scorecard SARIF to code scanning" in workflow
 
 
+@pytest.mark.parametrize(
+    "workflow_name",
+    ("security-scan.yml", "scheduled-security-scan.yml"),
+)
+def test_trivy_scans_custom_pip_requirements_manifests(workflow_name: str) -> None:
+    """Required and periodic scans must include generated requirements locks."""
+    workflow = (
+        REPOSITORY_ROOT / ".github/workflows" / workflow_name
+    ).read_text(encoding="utf-8")
+    step = workflow.split("      - name: Trivy filesystem scan\n", 1)[1].split(
+        "\n      - name:", 1
+    )[0]
+    environment = step.split("\n        env:\n", 1)[1].split(
+        "\n        with:\n", 1
+    )[0]
+    action_inputs = step.split("\n        with:\n", 1)[1]
+    environment_values = dict(
+        line.strip().split(": ", 1)
+        for line in environment.splitlines()
+        if line.startswith("          ")
+    )
+    input_names = {
+        line.strip().split(":", 1)[0]
+        for line in action_inputs.splitlines()
+        if line.startswith("          ") and not line.lstrip().startswith("#")
+    }
+
+    assert "uses: aquasecurity/trivy-action@" in step
+    assert environment_values["TRIVY_FILE_PATTERNS"] == "'pip:requirements-.*\\.txt'"
+    assert "file-patterns" not in input_names
+
+
 def test_ruleset_requires_dispatch_safe_codeql_pr() -> None:
     """Restore the central gate without reintroducing forbidden CodeQL actions."""
     workflow_path = ".github/workflows/codeql-pr.yml"