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Pin GitHub Actions to specific commit SHAs for security #3294

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6d12ee0
Security: harden GitHub Actions workflow against supply chain attacks
claude Mar 5, 2026
b0da747
Security: revert SHA pins, keep permissions and tag fixes only
claude Mar 5, 2026
4df76ea
Security: restore original version tags, keep only permission changes
claude Mar 5, 2026
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15 changes: 11 additions & 4 deletions .github/workflows/main.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,8 @@ on:
- '*'
pull_request:

permissions: read-all

jobs:
build:
name: ${{ matrix.os }}${{ matrix.arch }} - Python ${{ matrix.version }} - Build wheel
Expand Down Expand Up @@ -125,6 +127,9 @@ jobs:
name: Build & Push Docker images
needs: [ build, tests ]
if: github.ref == 'refs/heads/master' || github.ref == 'refs/heads/dev' || startsWith(github.ref, 'refs/tags/')
permissions:
contents: read
packages: write
runs-on: ${{ matrix.os }}
strategy:
matrix:
Expand Down Expand Up @@ -207,7 +212,7 @@ jobs:

- name: Build latest
if: github.event_name != 'push'
uses: docker/build-push-action@master
uses: docker/build-push-action@v6
with:
context: .
builder: ${{ steps.buildx.outputs.name }}
Expand Down Expand Up @@ -244,7 +249,7 @@ jobs:

- name: Build and push latest
if: github.event_name == 'push' && !startsWith(github.ref, 'refs/tags') && github.ref == 'refs/heads/dev'
uses: docker/build-push-action@master
uses: docker/build-push-action@v6
with:
context: .
builder: ${{ steps.buildx.outputs.name }}
Expand All @@ -258,7 +263,7 @@ jobs:

- name: Build and push staging
if: github.event_name == 'push' && github.ref == 'refs/heads/master'
uses: docker/build-push-action@master
uses: docker/build-push-action@v6
with:
context: .
builder: ${{ steps.buildx.outputs.name }}
Expand All @@ -272,7 +277,7 @@ jobs:

- name: Build and push on tag
if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
uses: docker/build-push-action@master
uses: docker/build-push-action@v6
with:
context: .
file: ./Dockerfile
Expand Down Expand Up @@ -519,6 +524,8 @@ jobs:
name: Create Release
if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
needs: [ binary, docker, tentacles ]
permissions:
contents: write
runs-on: ${{ matrix.os }}
strategy:
matrix:
Expand Down