From 31cb23d461b49713c7df0b6afe98071742116a44 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thomas=20M=C3=BCller?=
 <323649642+oc-tmueller@users.noreply.github.com>
Date: Mon, 26 Oct 2026 14:33:33 +0100
Subject: [PATCH 1/3] ci: add zizmor workflow audit
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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Runs zizmor over this repository's workflows and Dependabot config on
every pull request, on pushes to the default branch and weekly, through
owncloud/reusable-workflows' zizmor.yml. Any finding fails the check.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Thomas Müller <323649642+oc-tmueller@users.noreply.github.com>
---
 .github/workflows/zizmor.yml | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 .github/workflows/zizmor.yml

diff --git a/.github/workflows/zizmor.yml b/.github/workflows/zizmor.yml
new file mode 100644
index 0000000..ae9fff6
--- /dev/null
+++ b/.github/workflows/zizmor.yml
@@ -0,0 +1,30 @@
+name: Zizmor
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    types:
+      - opened
+      - synchronize
+      - reopened
+  schedule:
+    # Weekly: online audits (known-vulnerable actions, impostor commits) can
+    # start failing without a code change.
+    - cron: '0 4 * * 1'
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+# Grouped per event, so a push to the default branch can never cancel or
+# displace the weekly run; only pull request runs cancel superseded ones.
+concurrency:
+  group: zizmor-${{ github.event_name }}-${{ github.ref }}
+  cancel-in-progress: ${{ github.event_name == 'pull_request' }}
+
+jobs:
+  zizmor:
+    name: Zizmor
+    uses: owncloud/reusable-workflows/.github/workflows/zizmor.yml@main

From ca76c0b99fe00e7d0f6a026b849544885f2b07fa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thomas=20M=C3=BCller?=
 <323649642+oc-tmueller@users.noreply.github.com>
Date: Mon, 26 Oct 2026 14:33:33 +0100
Subject: [PATCH 2/3] fix(ci): resolve zizmor findings
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

- dependabot-cooldown: npm updates wait 7 days, as github-actions
  already does elsewhere in the org.
- excessive-permissions: ci.yml ran with the repository default, which
  is read/write; it now declares contents: read. Its single job only
  checks out, installs and runs the tests.
- artipacked: the ci.yml checkout does not persist credentials.
- cache-poisoning: suppressed inline. setup-node's npm cache is also
  used by tag builds, but this workflow publishes nothing.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Thomas Müller <323649642+oc-tmueller@users.noreply.github.com>
---
 .github/dependabot.yml   | 2 ++
 .github/workflows/ci.yml | 7 ++++++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 990611f..13fa77d 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -7,6 +7,8 @@ updates:
       day: sunday
       time: '22:00'
       timezone: Etc/UTC
+    cooldown:
+      default-days: 7
     open-pull-requests-limit: 5
     groups:
       minor-and-patch:
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 361e4a6..918a171 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -8,14 +8,19 @@ on:
       - '**'
   pull_request:
 
+permissions:
+  contents: read
+
 jobs:
   test:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          persist-credentials: false
 
       - uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
-        with:
+        with: # zizmor: ignore[cache-poisoning] tag builds only run the tests; nothing is published from this workflow
           node-version: 20
           cache: npm
 

From 6e38d80911a67ac0ca5d31ad223396391690d7f6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thomas=20M=C3=BCller?=
 <323649642+oc-tmueller@users.noreply.github.com>
Date: Mon, 26 Oct 2026 14:45:21 +0100
Subject: [PATCH 3/3] fix(ci): say what the zizmor concurrency group guarantees
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

GitHub keeps one pending run per concurrency group whatever
cancel-in-progress says, so a queued push run can still be replaced by a
newer one; only the weekly run is fully protected by the per-event
group. Same wording as owncloud/reusable-workflows#105.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Thomas Müller <323649642+oc-tmueller@users.noreply.github.com>
---
 .github/workflows/zizmor.yml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/zizmor.yml b/.github/workflows/zizmor.yml
index ae9fff6..b9cb1a9 100644
--- a/.github/workflows/zizmor.yml
+++ b/.github/workflows/zizmor.yml
@@ -19,7 +19,8 @@ permissions:
   contents: read
 
 # Grouped per event, so a push to the default branch can never cancel or
-# displace the weekly run; only pull request runs cancel superseded ones.
+# displace the weekly run. Running pull request runs are cancelled by newer
+# ones; for other events GitHub still replaces a queued run with a newer one.
 concurrency:
   group: zizmor-${{ github.event_name }}-${{ github.ref }}
   cancel-in-progress: ${{ github.event_name == 'pull_request' }}