Who should use Onbuild Guardian?

Onbuild Guardian is an open-source project built for devOps engineers and security professionals.

What platforms does Onbuild Guardian run on?

Onbuild Guardian runs on the command line. It can also be self-hosted.

Is Onbuild Guardian still maintained?

The GitHub repository shows 3 commits in the last 90 days.

What are alternatives to Onbuild Guardian?

Similar projects tracked by PulseGate include isaac-acp, applyr, and cosmo-cli.

Who develops Onbuild Guardian?

Onbuild Guardian is developed by O3-Cyber, based in Norway.

How long has Onbuild Guardian been around?

Onbuild Guardian first shipped in 2026.

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Onbuild Guardian

Name: Onbuild Guardian
Author: O3-Cyber

o3c.noInfrastructure🇳🇴

Onbuild Guardian is an open-source command-line tool designed to help DevOps and security professionals detect and mitigate supply chain attacks involving Docker ONBUILD directives. It provides automated scanning and actionable insights to secure container build processes.

Open SourceCLISelf-hosted

Visit o3c.no

2stars

5features

2026since

Overview

5 features

Onbuild Guardian sits in PulseGate's CLI tools & terminal category. It focuses on detecting and preventing supply chain attacks via Docker ONBUILD directives. It is built as an open-source project for devOps engineers and security professionals. Onbuild Guardian is open source under the Open Source license. It runs on the command line, and it can be self-hosted.

Behind Onbuild Guardian is O3-Cyber, based in Norway, and it first shipped in 2026. Development happens publicly on GitHub with 3 commits in the last 90 days. Among its 5 catalogued features are ONBUILD detection, supply chain security, and CLI interface.

Summary written by a language model from the project’s public pages.

ONBUILD detection
Supply chain security
CLI interface
Docker integration
Open source

Built with & integrations

Framework

Next.js

Hosting

Vercel

Runs on

CLISelf-hosted

Detected from

Next.js: x-powered-by header · /_next/static/ in the HTML
Vercel: x-vercel-id header · x-vercel-cache header

Trust & compliance

License

Open Source

Verified signals

HTTPSPrivacy Policy Open SourceFree tierGitHub · ★ 2Active maintenance

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed26 Jun · 18:51 UTC
Listing verified against its public source
Source: PulseGate · Open

Frequently asked questions about Onbuild Guardian

What is Onbuild Guardian?: Onbuild Guardian focuses on detecting and preventing supply chain attacks via Docker ONBUILD directives. It is catalogued under CLI tools & terminal on PulseGate.
Who should use Onbuild Guardian?: Onbuild Guardian is an open-source project built for devOps engineers and security professionals.
Is Onbuild Guardian free?: Yes — Onbuild Guardian is open source under the Open Source license and free to use.
What platforms does Onbuild Guardian run on?: Onbuild Guardian runs on the command line. It can also be self-hosted.
Is Onbuild Guardian still maintained?: The GitHub repository shows 3 commits in the last 90 days.
What are alternatives to Onbuild Guardian?: Similar projects tracked by PulseGate include isaac-acp, applyr, and cosmo-cli.isaac-acp applyr cosmo-cli
Who develops Onbuild Guardian?: Onbuild Guardian is developed by O3-Cyber, based in Norway.
How long has Onbuild Guardian been around?: Onbuild Guardian first shipped in 2026.

At a glance

Pricing: Open Source
Platforms: Cli
Languages: English
Open source: Yes · ★ 2
License: Open Source
Built for: DevOps engineers and security professionals
Model: Open source
Solves: Detecting and preventing supply chain attacks via Docker ONBUILD directives.

Registered as

GitHub: O3-Cyber/onbuild-supplychain-attack-poc

Developer

🇳🇴O3-Cyber

Solo developer

GitHub

Open source

View on GitHub

Stars: 2
Forks: 0
Open issues: 0
Last commit: 28 Apr 2026
Commits 90d: 3
Contributors: 1
Authorship: Solo
Default branch: master

Live coverage

Identity confidence: High · 98.4
Indexed: 26 Jun 2026
Lifecycle: Unverified
Last seen: 26 Jun 2026

Identity audit (12)

Slug: unmasking-the-docker-onbuild-supply-chain-attack-vector-o3c-o3c-no
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 26 Jun 2026
Timeline basis: Indexed-at chronology. This listing's first-seen date was written by the catalog backfill, not observed here, so it is not treated as a sighting.
Name from: Written by a language model from the project's public pages.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 26 Jun 2026
Canonical URL: https://o3c.no/knowledge/unmasking-the-docker-onbuild-supply-chain-attack-vector

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