What are Docker Hardened Images?

Minimal, secure base images for containers—pre-built for langs like Node, Python—with SBOMs, SLSA proofs, and zero critical CVEs.

Why did Docker make Hardened Images free?

To boost adoption after tepid paid uptake, aligning with open-source roots while pushing secure defaults industry-wide.

How do I start using Docker Hardened Images?

`FROM docker.io/docker/hardened-node:20`. Run `docker scout compare` for health scores. Migrate gradually, test multi-arch.

🤖 AI Dev Tools

Docker Frees Hardened Images: Secure Builds Without the Paywall

Your next container build just got a security upgrade—for free. Docker's Hardened Images, once locked behind a paywall, are now open source, slashing attack surfaces for everyday devs.

DevTools Feed Apr 03, 2026 3 min read 14 views

Docker Hardened Images free announcement with secure container icons

⚡ Key Takeaways

DHI now free/open source, slashing secure container costs for all devs. 𝕏
SBOMs, SLSA, VEX make supply chain attacks way harder—start green, stay green. 𝕏
Expect ecosystem shift: 20%+ of Docker pulls hardened by mid-2025. 𝕏

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#container-security #dhi #docker-hardened-images #open source #sbom #slsa #slsa-sbom

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Originally reported by changelog.com

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