ci: Pin GitHub Actions to immutable commit SHAs

.github/workflows/catalog-sync-check.yml

@@ -12,10 +12,10 @@ jobs:
 
     steps:
     - name: Checkout Repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
 
     - name: Set up Python
-      uses: actions/setup-python@v5
+      uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
       with:
         python-version: '3.11'
 

.github/workflows/check-artifacts.yml

@@ -16,7 +16,7 @@ jobs:
   artifact-check:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
         with:
           fetch-depth: 0
 

.github/workflows/ci.yml

@@ -14,11 +14,11 @@ jobs:
       run_backend: ${{ steps.filter.outputs.run_backend }}
       run_frontend: ${{ steps.filter.outputs.run_frontend }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
         with:
           fetch-depth: 0
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
         with:
           python-version: "3.11"
       - name: Fetch base branch for diff
@@ -37,7 +37,7 @@ jobs:
     if: github.event_name == 'pull_request'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
         with:
           fetch-depth: 0
       - name: Check formatting hygiene on changed files
@@ -46,8 +46,8 @@ jobs:
   issue-template-label-validation:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
         with:
           python-version: "3.11"
       - name: Validate issue template labels
@@ -56,8 +56,8 @@ jobs:
   doc-anchor-validation:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
         with:
           python-version: "3.11"
 
@@ -69,8 +69,8 @@ jobs:
     if: needs.detect-changes.outputs.run_backend == 'true'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
         with:
           python-version: "3.11"
       - name: Install backend system dependencies
@@ -91,8 +91,8 @@ jobs:
       (needs.formatting-hygiene.result == 'success' || needs.formatting-hygiene.result == 'skipped')
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
         with:
           python-version: "3.11"
       - name: Install backend system dependencies
@@ -113,8 +113,8 @@ jobs:
       (needs.formatting-hygiene.result == 'success' || needs.formatting-hygiene.result == 'skipped')
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
         with:
           python-version: "3.11"
       - name: Install backend system dependencies
@@ -142,8 +142,8 @@ jobs:
           - credentials
           - exploit
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
         with:
           python-version: "3.11"
       - name: Install backend system dependencies
@@ -173,8 +173,8 @@ jobs:
   backend-audit:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
         with:
           python-version: "3.11"
       - name: Install backend system dependencies
@@ -207,13 +207,13 @@ jobs:
 
       - name: Upload pip-audit report
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
         with:
           name: pip-audit-report
           path: ${{ github.workspace }}/backend/pip-audit-report.json
 
       - name: Upload SBOM
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
         with:
           name: sbom
           path: ${{ github.workspace }}/sbom.json
@@ -222,8 +222,8 @@ jobs:
     runs-on: ubuntu-latest
     needs: [backend-lint]
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
         with:
           python-version: "3.11"
       - name: Install backend system dependencies
@@ -238,7 +238,7 @@ jobs:
         continue-on-error: true
       - name: Upload benchmark comparison artifacts
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
         with:
           name: benchmark-threshold-comparison
           path: |
@@ -263,8 +263,8 @@ jobs:
       run:
         working-directory: frontend
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4
         with:
           node-version: ${{ matrix.node-version }}
           cache: "npm"
@@ -276,7 +276,7 @@ jobs:
           echo "version=$PLAYWRIGHT_VERSION" >> "$GITHUB_OUTPUT"
           echo "Using Playwright version $PLAYWRIGHT_VERSION for browser cache key"
       - name: Restore Playwright browser cache
-        uses: actions/cache@v4
+        uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4
         with:
           path: ~/.cache/ms-playwright
           key: ${{ runner.os }}-playwright-${{ steps.playwright-version.outputs.version }}-${{ matrix.node-version }}
@@ -302,7 +302,7 @@ jobs:
         run: python ${{ github.workspace }}/scripts/check_npm_audit.py --report ${{ github.workspace }}/frontend/npm-audit-report.json --config ${{ github.workspace }}/.audit-config.yaml
       - name: Upload npm-audit report
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
         with:
           name: npm-audit-report
           path: frontend/npm-audit-report.json

.github/workflows/docker-hardening.yml

@@ -34,13 +34,13 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@8d2750c68a42422c14e847fe6c8ac0403b4cbd6f # v3
 
       - name: Build ${{ matrix.service }} image
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@10e90e3645eae34f1e60eeb005ba3a3d33f178e8 # v6
         with:
           context: ${{ matrix.context }}
           file: ${{ matrix.dockerfile }}
@@ -54,7 +54,7 @@ jobs:
         run: docker save ${{ matrix.image }}:ci -o /tmp/${{ matrix.image }}.tar
 
       - name: Upload image artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
         with:
           name: ${{ matrix.image }}-tar
           path: /tmp/${{ matrix.image }}.tar
@@ -75,10 +75,10 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
 
       - name: Download image artifact
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4
         with:
           name: ${{ matrix.image }}-tar
           path: /tmp
@@ -114,7 +114,7 @@ jobs:
 
       # No secrets baked into image
       - name: Scan image layers for secrets (Trivy secret scanner)
-        uses: aquasecurity/trivy-action@v0.36.0
+        uses: aquasecurity/trivy-action@a9c7b0f06e461e9d4b4d1711f154ee024b8d7ab8 # v0.36.0
         with:
           image-ref: ${{ matrix.image }}:ci
           format: table
@@ -124,7 +124,7 @@ jobs:
 
       # Dockerfile lint (hadolint)
       - name: Lint ${{ matrix.service }} Dockerfile with hadolint
-        uses: hadolint/hadolint-action@v3.1.0
+        uses: hadolint/hadolint-action@54c9adbab1582c2ef04b2016b760714a4bfde3cf # v3.1.0
         with:
           dockerfile: ./${{ matrix.service }}/Dockerfile
           failure-threshold: error

.github/workflows/plugin-integrity-check.yml

@@ -14,10 +14,10 @@ jobs:
 
     steps:
     - name: Checkout Repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
 
     - name: Set up Python
-      uses: actions/setup-python@v5
+      uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
       with:
         python-version: '3.11'
 

.github/workflows/security-ci.yml

@@ -15,8 +15,8 @@ jobs:
     name: Python Security Linting (Bandit)
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
         with:
           python-version: "3.11"
       - name: Install bandit
@@ -39,7 +39,7 @@ jobs:
           "
       - name: Upload bandit report
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
         with:
           name: bandit-report
           path: bandit-report.json
@@ -48,8 +48,8 @@ jobs:
     name: Route Authentication Check
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
         with:
           python-version: "3.11"
       - name: Check all API routers have authentication
@@ -82,8 +82,8 @@ jobs:
     name: Debug Mode Default Check
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
         with:
           python-version: "3.11"
       - name: Verify debug mode is off by default
@@ -124,7 +124,7 @@ jobs:
     name: Hardcoded Secret Detection
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
         with:
           fetch-depth: 0
       - name: Scan for hardcoded secrets
@@ -172,8 +172,8 @@ jobs:
     name: Environment Config Validation
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
         with:
           python-version: "3.11"
       - name: Validate .env.example safe defaults
@@ -205,8 +205,8 @@ jobs:
     name: Dependency Security Audit
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
         with:
           python-version: "3.11"
       - name: Install pip-audit
@@ -234,7 +234,7 @@ jobs:
           "
       - name: Upload audit report
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
         with:
           name: dep-audit-report
           path: dep-audit.json

.github/workflows/smoke-test.yml

@@ -33,7 +33,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
 
       - name: Validate start.sh syntax
         run: bash -n start.sh
@@ -58,20 +58,20 @@ jobs:
     steps:
       # ── 1. Checkout ────────────────────────────────────────────────────────
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
 
       # ── 2. Set up Python 3.11 ──────────────────────────────────────────────
       # setup.sh requires Python 3.11+. We pin it explicitly so the runner
       # never silently falls back to an older system Python.
       - name: Set up Python 3.11
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
         with:
           python-version: "3.11"
 
       # ── 3. Set up Node.js ──────────────────────────────────────────────────
       # setup.sh checks for node + npm; frontend uses Vite on port 5173.
       - name: Set up Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4
         with:
           node-version: "20"
 
@@ -224,7 +224,7 @@ jobs:
       # ── 13. Upload logs on failure ─────────────────────────────────────────
       - name: Upload logs on failure
         if: failure()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
         with:
           name: smoke-test-logs
           path: |