ci: harden npm dependency checks

.github/workflows/node.js.yml

@@ -9,6 +9,9 @@ on:
   pull_request:
     branches: [ "master", "develop" ]
 
+permissions:
+  contents: read
+
 jobs:
   build:
 
@@ -26,7 +29,8 @@ jobs:
       with:
         node-version: ${{ matrix.node-version }}
         cache: 'npm'
-    - run: npm ci
+    - run: npm ci --ignore-scripts
+    - run: npm run prepare
     - run: npm test
     # Run CommonJS compatibility test
     - run: npm run test:cjs
@@ -47,5 +51,81 @@ jobs:
         with:
           node-version: 24.x
           cache: 'npm'
-      - run: npm ci
+      - run: npm ci --ignore-scripts
       - run: npm exec -- prettier --check "lib/*.ts" "test/*.js" "examples/**/*.js"
+
+  supply-chain:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v7
+      - uses: actions/setup-node@v7
+        with:
+          node-version: 24.x
+          cache: 'npm'
+      - name: Reject known malicious package versions
+        run: |
+          node <<'NODE'
+          const fs = require('node:fs')
+          const blocked = new Map([
+            ['keyv', '6.0.0'],
+            ['flat-cache', '6.1.24'],
+            ['file-entry-cache', '11.1.6']
+          ])
+          const lockfiles = [
+            'package-lock.json',
+            'examples/express-sample/package-lock.json',
+            'examples/using-domains/package-lock.json'
+          ]
+
+          for (const lockfile of lockfiles) {
+            const lock = JSON.parse(fs.readFileSync(lockfile, 'utf8'))
+            for (const [path, metadata] of Object.entries(lock.packages)) {
+              for (const [name, version] of blocked) {
+                if ((path === `node_modules/${name}` || path.endsWith(`/node_modules/${name}`)) && metadata.version === version) {
+                  throw new Error(`${lockfile} contains known malicious package ${name}@${version}`)
+                }
+              }
+            }
+          }
+          NODE
+      - run: npm ci --ignore-scripts
+      - run: npm audit --omit=dev
+      - run: npm audit signatures
+
+  examples:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        example: [express-sample, using-domains]
+
+    steps:
+      - uses: actions/checkout@v7
+      - uses: actions/setup-node@v7
+        with:
+          node-version: 24.x
+          cache: 'npm'
+          cache-dependency-path: |
+            package-lock.json
+            examples/${{ matrix.example }}/package-lock.json
+      - run: npm ci --ignore-scripts
+      - run: npm run prepare
+      - run: npm ci --ignore-scripts
+        working-directory: examples/${{ matrix.example }}
+      - run: npm audit --omit=dev
+        working-directory: examples/${{ matrix.example }}
+      - run: npm audit signatures
+        working-directory: examples/${{ matrix.example }}
+      - name: Smoke test Express example
+        if: matrix.example == 'express-sample'
+        working-directory: examples/express-sample
+        env:
+          NODE_ENV: production
+        run: node -e "require('./app')"
+      - name: Smoke test domains example
+        if: matrix.example == 'using-domains'
+        working-directory: examples/using-domains
+        run: |
+          node --check app.js
+          node -e "require('config'); require('raygun')"

package.json

@@ -69,11 +69,6 @@
     "debug": "^4.3.4",
     "stack-trace": "0.0.10"
   },
-  "overrides": {
-    "keyv": "4.5.4",
-    "flat-cache": "4.0.1",
-    "file-entry-cache": "8.0.0"
-  },
   "keywords": [
     "APM",
     "crash",