---
title: SBOM Verification
description: Verify, download, and inspect the Software Bill of Materials published with each HVE Core release
sidebar_position: 3
author: Microsoft
ms.date: 2026-03-01
ms.topic: how-to
keywords:
  - SBOM
  - software bill of materials
  - SPDX
  - attestation
  - Sigstore
  - supply chain
  - verification
estimated_reading_time: 5
---

Every HVE Core release publishes a Software Bill of Materials (SBOM) in SPDX 2.3 JSON format alongside the extension package. The SBOM lists every component bundled in the release, including names, versions, and licenses. Like build provenance, the SBOM is cryptographically attested using Sigstore so you can confirm it was generated by the official CI/CD pipeline.

## What Gets Published

Each release produces two SBOM files:

| File                                | Contents                                      |
|-------------------------------------|-----------------------------------------------|
| `hve-core-<version>.vsix.spdx.json` | Components packaged inside the VSIX extension |
| `dependencies.spdx.json`            | npm dependency tree used during the build     |

Both files are uploaded to the GitHub Release and attested with `actions/attest`. The per-extension SBOM is generated by `anchore/sbom-action` using the Syft scanner, which produces SPDX 2.3 JSON output.

## Verifying the SBOM Attestation

SBOM attestation verification uses the GitHub CLI. Install it if you have not already:

```bash
# Windows (winget)
winget install GitHub.cli

# macOS (Homebrew)
brew install gh
```

Download the VSIX from a release (replace `<version>` with the release tag, e.g., `v1.2.0`):

```bash
gh release download <version> -R microsoft/hve-core -p '*.vsix'
```

Verify the SBOM attestation:

```bash
gh attestation verify hve-core-<version>.vsix -R microsoft/hve-core \
  --predicate-type https://spdx.dev/Document/v2.3
```

A successful verification confirms:

* The component inventory was generated from the official CI/CD pipeline
* The SBOM has not been modified since signing
* The SBOM corresponds to the verified VSIX artifact

> [!TIP]
> Build provenance and SBOM are independent attestations. The default `gh attestation verify` command (without `--predicate-type`) verifies build provenance. Adding `--predicate-type https://spdx.dev/Document/v2.3` verifies the SBOM instead.

## Downloading and Inspecting

Download both SBOM files from a release:

```bash
gh release download <version> -R microsoft/hve-core -p '*.spdx.json'
```

Use `jq` to inspect the contents:

```bash
# Summary
jq '{
  version: .spdxVersion,
  name: .name,
  created: .creationInfo.created,
  packages: (.packages | length)
}' hve-core-<version>.vsix.spdx.json

# Package list with versions
jq '.packages[] | {name, versionInfo}' hve-core-<version>.vsix.spdx.json

# License information
jq '.packages[] | {name, licenseConcluded, licenseDeclared}' hve-core-<version>.vsix.spdx.json
```

## Key SPDX Fields

The SBOM follows the SPDX 2.3 specification. These fields are most relevant for security and compliance review:

| Field              | Description                                          |
|--------------------|------------------------------------------------------|
| `spdxVersion`      | Specification version (SPDX-2.3)                     |
| `name`             | Document name identifying the scanned artifact       |
| `creationInfo`     | Timestamp and tool that generated the document       |
| `packages`         | Array of components with name, version, and supplier |
| `licenseConcluded` | License determined through analysis                  |
| `licenseDeclared`  | License stated by the package author                 |
| `relationships`    | Dependency graph between components                  |

## Consuming the SBOM

You can feed the SPDX JSON file into security and compliance tooling:

| Use Case               | Description                                                                                                                   |
|------------------------|-------------------------------------------------------------------------------------------------------------------------------|
| Vulnerability scanning | Import into tools like Grype, Trivy, or Dependabot to check for known CVEs in bundled components.                             |
| License compliance     | Parse `licenseConcluded` and `licenseDeclared` fields to validate that all included licenses meet your organization's policy. |
| Inventory tracking     | Use the package list to maintain an accurate record of third-party components in your environment.                            |

## Related Resources

* [SECURITY.md](https://github.com/microsoft/hve-core/blob/main/SECURITY.md): Build provenance verification and vulnerability reporting
* [Threat Model](threat-model): Security controls including SBOM attestation (SC-7)

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