GUAC Blog

Big news in supply chain security: GUAC v1.0 is now available! Started by Kusari, Google, and Purdue University, GUAC has contributions from over 400 people representing more than 90 organizations including Microsoft and Red Hat. GUAC v1.0 brings several bug fixes since the v0.14.0 release, but is primarily a marker of what’s considered stable.

What’s stable

Users can rely on the behavior of the elements listed blow not changing in an incompatible way. Future releases in the version 1 series may add support for new features so long as those changes don’t break existing stable workflows. Compatibility-breaking changes to stable elements will go into a future release series (e.g. version 2).

• GraphQL API
• Parsers for CSAF, OpenVEX, CycloneDX, DSSE, Intoto ITE6, SPDX, and OpenSSF Scorecard
• Ingestion using Azure Blog Storage, Google Cloud Storage, Amazon S3, Memblob,and regular file system blobs
• Ingestion-time enrichment from OSV, ClearlyDefined, and Deps.Dev
• Certifiers for OSV and ClearlyDefined
• The filesystem collector
• Ent of Postgresql for persistent storage

Other features remain available in GUAC, such as the OCI collector and end-of-life certifier, but they are considered experimental. Experimental features are subject to compatibility-breaking changes within the version 1 release series.

Who GUAC 1.0 is for

GUAC v1.0 is for developers and platform engineering teams who:

• Have tens to thousands of SBOMs
• Need an extensible, powerful storage and enrichment tool for building a software supply chain solution
• Are comfortable self-hosting infrastructure
• Are comfortable writing queries against GraphQL APIs

Join us

GUAC v1.0 is only the beginning! If you’re interesting in joining our community or contributing, we’d love to have you run GUAC, explore the ontology, and give us feedback on the problems GUAC solves (and doesn’t solve) for you.

Join the GUAC community Thursday at 1PM Eastern (1700 UTC) for the June Community Meeting.

Topics include:

• Contributor ladder climbs
• GUAC 1.0 release
• Plus your topics!

Even though, as of this writing, GUAC 1.0 isn’t quite out the door, we’re close. So bring some guacamole and chips and let’s all come together to celebrate this huge milestone!

Zoom link and meeting notes are on the OpenSSF Calendar.

If you can’t make it, the recording will be posted to our YouTube channel.

Welcome to the GUAC Update, a monthly review of what has happened in the GUAC community and what’s coming up. If you have feedback, please let us know. To include something in next month’s update, leave a comment in the issue.

We’re putting the final touches on the GUAC 1.0 release. As part of that, the Helm charts developed by Kusari are now in the guacsec organization.

The CNCF is looking at using GUAC to gain insights into the software supply chain across its wide portfolio of projects. We’re excited to work with them on this.

Community

New contributors

• Maximilian Combüchen fixed handling of empty package namespaces in GUAC Visualizer.

Events

Several members of the GUAC community will be presenting at Open Source Summit North America in Denver:

• Mihai Maruseac will be part of a panel “Panel Discussion: Strengthening Software Supply Chains: Harmonizing SLSA Provenance and SPDX SBOM for Better Adoption”
• Brandt Keller will present “Enhancing Supply Chain Security: Integrating Zarf and GUAC for Seamless SBOM Generation and Delivery]” at OpenSSF Community Day
• Mihai Maruseac will present “Taming the Wild West of ML: Practical Model Signing With Sigstore on Kaggle” at OpenSSF Community Day

Coming up

Be sure to join us in the weekly Maintainer Meetings, monthly Community Meeting, or on Slack and office hours to participate in the conversation.

The GUAC Helm charts are now under the guacsec organization on GitHub. You can find the Helm charts in https://github.com/guacsec/helm-charts.

If you have previously deployed GUAC using the Helm charts when they were hosted in the kusaridev organization, you will need to change any reference from the old location (kusaridev/helm-charts) to the new location (guacsec/helm-charts). Consult the documentation for your tooling for specific instructions.

The GUAC Docs have all been updated with the new location. If you see anything incorrect in the docs, please open an issue.

The GUAC Community Meeting for Thursday 15 May is cancelled. Since the June Community Meeting would fall on the U.S. Juneteenth holiday, the June Community Meeting will happen a week early: Thursday 12 June. See the OpenSSF Calendar for details.

Welcome to the GUAC Update, a monthly review of what has happened in the GUAC community and what’s coming up. If you have feedback, please let us know. To include something in next month’s update, leave a comment in the issue.

We’re putting the final touches on the GUAC 1.0 release. Plus, we’re working on merging with the Trustify project to create a unified effort to address the challenges of consuming, processing, and utilizing supply chain security metadata at scale. Stay tuned for updates.

Community

New contributors

• Brian Demers fixed the download links for Apple silicon in the Docs.

Events

Ben Cotton presented How to Use The Open Source Project Security Baseline to Better Navigate Standards & Regulations as an OpenSSF Tech Talk on 24 April.

Several members of the GUAC community will be presenting at Open Source Summit North America in Denver:

• Mihai Maruseac will be part of a panel “Panel Discussion: Strengthening Software Supply Chains: Harmonizing SLSA Provenance and SPDX SBOM for Better Adoption”
• Brandt Keller will present “[Enhancing Supply Chain Security: Integrating Zarf and GUAC for Seamless SBOM Generation and Delivery(https://openssfcdna2025.sched.com/event/1zhnb)]” at OpenSSF Community Day
• Mihai Maruseac will present “Taming the Wild West of ML: Practical Model Signing With Sigstore on Kaggle” at OpenSSF Community Day

Coming up

Be sure to join us in the weekly Maintainer Meetings, monthly Community Meeting, or on Slack and office hours to participate in the conversation.

Join the GUAC community Thursday at 1PM Eastern (1700 UTC) for the March Community Meeting.

Topics include:

• Contributor ladder climbs
• Kubescape collector added in v0.14.0
• GUAC 1.0 technical overview and feedback
• GUAC & Trustification community discussion
• Plus your topics!

Zoom link and meeting notes are on the OpenSSF Calendar.

If you can’t make it, the recording will be posted to our YouTube channel.

Welcome to the GUAC Update, a monthly review of what has happened in the GUAC community and what’s coming up. If you have feedback, please let us know. To include something in next month’s update, leave a comment in the issue.

Releases

GUAC v0.14.0 was released. It adds a Kubescape colletor for run-time SBOMs.

Community

New contributors

• Hidde-Jan Jongsma contributed improvements to GUAC Visualizer performance.

Ladder climbs

• Ben Cotton was made a Reviewer for the Front-end area.

Events

Several members of the GUAC community spoke at KubeCon EU in London:

• Michael Lieberman presented a keynote “Cutting Through The Fog: Clarifying CRA Compliance in Cloud Native” with Eddie Knight
• Jeff Mendoza presented a talk “Why Don’t We Have Both? Track Build- and Run-time Information for Security With Kubescape and GUAC” with Ben Hirschberg
• Michael Lieberman presented a talk “Bridging Supply Chain Policy with Git-less GitOps and GUAC” with Andrew Martin.

Ben Cotton will be presenting How to Use The Open Source Project Security Baseline to Better Navigate Standards & Regulations as an OpenSSF Tech Talk on 24 April.

Coming up

Be sure to join us in the weekly Maintainer Meetings, monthly Community Meeting, or on Slack and office hours to participate in the conversation.

GUAC v0.14.0 is now available. This release adds:

• Kubescape collector
  • See the accompanying blog post
• Improvements to the ClearlyDefined certifier
  • Retry failed requests for more error codes
  • Improve Go package name translation
• Endpoint changes to REST API
  • Dependency search queries are now under the versioned “/v0/…” path
• Improvements to the End of Life certifier logic
  • The parsing of purls now uses standard helper methods and the check for whether a node has EOL data is now more specific to mitigate false positives
• Connect equivalent nodes representing container images with an IsOccurrence node.

The v0.14.0 release page has full details of this release. If you’re interesting in joining our community or contributing, we’d love to have you be a part of the next release.

With the release of GUAC v0.14.0, GUAC includes a Kubescape collector that can be run inside your Kubernetes cluster to watch for new scan results from Kubescape and ingest those results into the GUAC supply chain graph.

Kubescape is an open-source Kubernetes security platform that provides comprehensive security coverage, from left to right across the entire development and deployment lifecycle. It offers hardening, posture management, and runtime security capabilities to ensure robust protection for Kubernetes environments.

When Kubescape is installed as an Operator in your Kubernetes cluster, it can continuously scan all running containers for contents and vulnerabilities. These scan results can be accessed as Kubernetes API server custom resources. Additionally, Kubescape can filter the SBOM scan results based on relevancy based on eBPF observation.

With GUAC being the prime system resource for collating and correlating data from across your supply chain, it only made sense to enable GUAC to incorporate these Kubescape results. GUAC’s new ability to analyze both build-time and run-time SBOMs in a single GraphQL API enables exciting new insights. We will explore some of those in our Kubecon EU session “Why Don’t We Have Both? Track Build- and Run-time Information for Security With Kubescape and GUAC”. Please join us there or look out for the recording.