[dependabot]

Bumps microsoft/security-devops-action from 1.12.0 to 1.12.1.

Release notes

Sourced from microsoft/security-devops-action's releases.

v1.12.1 - Brotli response-path mitigation

Security mitigation

This patch mitigates the NuGet metadata response-decoding path for CVE-2026-111497.

• Decline Brotli responses and reject unsupported content encodings before decompression.
• Preserve identity, gzip and deflate handling, package downloads, authentication and cache behavior.
• Propagate response/decompression failures explicitly.
• Include a Windows/Linux response-security matrix and compatible scan-verification uploads.

The mitigation is backported to the existing release lineage through [PR #278](microsoft/security-devops-action#278), following [toolkit PR #24](microsoft/security-devops-actions-toolkit#24). [PR #279](microsoft/security-devops-action#279) adopts it separately on main. This release does not promote unrelated main changes.

Upgrade

- uses: microsoft/security-devops-action@v1.12.1

For immutable SHA pinning, use:

- uses: microsoft/security-devops-action@cf28f87c67770dbaa208cce3665fafc849f77507

New runs resolving @latest already receive this hotfix. Existing workflows pinned to v1.12.0 or older commits must update their reference. No existing version tag is moved.

Validation and scope

• The exact release commit passed the 27-test response-security suite on Windows/Linux with Node.js 20.13.1 and 24.22.1.
• Post-merge Windows/Linux scans and SARIF uploads succeeded and produced non-empty per-OS artifacts.
• Seven pre-existing legacy unit-test failures remain; this is not an all-green legacy-suite claim.
• Dependency versions and the dependency lockfile are unchanged from v1.12.0. Existing adm-zip high-severity and uuid moderate audit advisories remain outside this targeted patch.

This mitigates the action's reported Brotli response path. It does not patch Node.js itself or establish that other Brotli consumers are remediated. No new toolkit npm package is published by this action release.

Commits

• cf28f87 fix(security): backport Brotli mitigation to latest (#278)
• d0736c5 Merge pull request #122 from microsoft/main
• a50dd3d Merge pull request #101 from microsoft/main
• See full diff in compare view

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[github-actions]

Dependency Review

✅ No vulnerabilities or license issues or OpenSSF Scorecard issues found.

OpenSSF Scorecard

Package	Version	Score	Details
actions/microsoft/security-devops-action	cf28f87c67770dbaa208cce3665fafc849f77507	🟢 5.8	Details Check Score Reason Code-Review 🟢 10 all changesets reviewed Binary-Artifacts 🟢 10 no binaries found in the repo Maintained 🟢 10 1 commit(s) and 14 issue activity found in the last 90 days -- score normalized to 10 Dangerous-Workflow ⚠️ 0 dangerous workflow patterns detected Security-Policy 🟢 10 security policy file detected Packaging ⚠️ -1 packaging workflow not detected Token-Permissions ⚠️ 0 detected GitHub workflow tokens with excessive permissions CII-Best-Practices ⚠️ 0 no effort to earn an OpenSSF best practices badge detected Pinned-Dependencies 🟢 7 dependency not pinned by hash detected -- score normalized to 7 Fuzzing ⚠️ 0 project is not fuzzed License 🟢 10 license file detected Signed-Releases ⚠️ -1 no releases found Branch-Protection 🟢 6 branch protection is not maximal on development and all release branches SAST 🟢 8 SAST tool is not run on all commits -- score normalized to 8

Scanned Files

• .github/workflows/msdo.yml