From 4068a4dcc182c6dbbf1fc334de33b24aece2441d Mon Sep 17 00:00:00 2001
From: Toby Hede <toby@cipherstash.com>
Date: Wed, 25 Feb 2026 11:23:07 +1100
Subject: [PATCH 1/3] ci(security): add CodeQL and OSV-Scanner workflows

Add static analysis (CodeQL) and dependency vulnerability scanning
(OSV-Scanner) to CI. Both run on push/PR to main and weekly on Monday
08:00 UTC. Results upload to GitHub Security tab via SARIF.
---
 .github/workflows/codeql.yml      | 44 +++++++++++++++++++++++++++++++
 .github/workflows/osv-scanner.yml | 25 ++++++++++++++++++
 2 files changed, 69 insertions(+)
 create mode 100644 .github/workflows/codeql.yml
 create mode 100644 .github/workflows/osv-scanner.yml

diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
new file mode 100644
index 00000000..d5c7e6ed
--- /dev/null
+++ b/.github/workflows/codeql.yml
@@ -0,0 +1,44 @@
+name: CodeQL
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+  schedule:
+    - cron: "0 8 * * 1"
+
+permissions:
+  security-events: write
+  contents: read
+  actions: read
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: blacksmith-4vcpu-ubuntu-2404
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language:
+          - javascript-typescript
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v3
+        with:
+          languages: ${{ matrix.language }}
+
+      - name: Autobuild
+        uses: github/codeql-action/autobuild@v3
+
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v3
+        with:
+          category: "/language:${{ matrix.language }}"
diff --git a/.github/workflows/osv-scanner.yml b/.github/workflows/osv-scanner.yml
new file mode 100644
index 00000000..cc9f0a04
--- /dev/null
+++ b/.github/workflows/osv-scanner.yml
@@ -0,0 +1,25 @@
+name: OSV-Scanner
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+  schedule:
+    - cron: "0 8 * * 1"
+
+permissions:
+  security-events: write
+  contents: read
+  actions: read
+
+jobs:
+  osv-scan:
+    name: OSV Vulnerability Scan
+    uses: google/osv-scanner-action/.github/workflows/osv-scanner-reusable.yml@v2.3.3
+    with:
+      scan-args: |-
+        --recursive
+        ./

From 5f444095246213a87898c1c2c5d50cd009c3946e Mon Sep 17 00:00:00 2001
From: Toby Hede <toby@cipherstash.com>
Date: Wed, 25 Feb 2026 12:35:52 +1100
Subject: [PATCH 2/3] ci(security): make OSV-Scanner non-blocking

Set fail-on-vuln to false so vulnerability scan results are reported
to GitHub Security tab without failing CI. Current findings are all
low/medium severity in transitive dev dependencies.
---
 .github/workflows/osv-scanner.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.github/workflows/osv-scanner.yml b/.github/workflows/osv-scanner.yml
index cc9f0a04..20b69f2f 100644
--- a/.github/workflows/osv-scanner.yml
+++ b/.github/workflows/osv-scanner.yml
@@ -20,6 +20,7 @@ jobs:
     name: OSV Vulnerability Scan
     uses: google/osv-scanner-action/.github/workflows/osv-scanner-reusable.yml@v2.3.3
     with:
+      fail-on-vuln: false
       scan-args: |-
         --recursive
         ./

From 7c9bd48b040cb0d4241bb16c3cb1f8170fb072fe Mon Sep 17 00:00:00 2001
From: Toby Hede <toby@cipherstash.com>
Date: Wed, 25 Feb 2026 13:09:24 +1100
Subject: [PATCH 3/3] ci(security): upgrade CodeQL action to v4 and remove
 autobuild

Upgrade codeql-action from v3 to v4 (v3 deprecated December 2026).
Remove unnecessary Autobuild step since JavaScript/TypeScript
analysis does not require a build.
---
 .github/workflows/codeql.yml | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index d5c7e6ed..5538cb08 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -31,14 +31,11 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@v3
+        uses: github/codeql-action/init@v4
         with:
           languages: ${{ matrix.language }}
 
-      - name: Autobuild
-        uses: github/codeql-action/autobuild@v3
-
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@v3
+        uses: github/codeql-action/analyze@v4
         with:
           category: "/language:${{ matrix.language }}"