Topic starter
11/11/2026 6:00 pm
TL;DR: What ships is often different from what manifests or binaries suggest, according to RunSafe Security. Build-time SBOMs give practitioners a truer inventory for vulnerability triage, compliance evidence and supply chain risk decisions.
Editorial analysis by NHI Mgmt Group, based on content published by RunSafe Security: “3 SBOM Generation Methods: Binary vs Build-Time vs Source Code”.
Key questions
Q: Why do source code SBOMs miss dependencies that ship in the binary?
A: Source code SBOMs can miss dependencies because they only reflect what is declared or reachable in the source tree, not what the compiler, build tool or linker actually includes in the final artefact.
Q: What is the difference between source code and binary SBOMs?
A: A source code SBOM lists components visible from the repository, such as declared packages, imports and build files.
Q: How should organisations use SBOMs to improve software supply chain governance?
A: Treat SBOMs as a live control input.
Practitioner guidance
- Shift SBOM generation into the build pipeline Generate the SBOM during compilation so the inventory reflects the exact artifact that will be released, not a separate source snapshot.
- Validate static linking and vendored code paths Check whether libraries are compiled directly into the executable or bundled during build, because those components are the ones source-only inventories miss most often.
- Use binary SBOMs as release verification Reserve post-build scanning for confirming the delivered firmware or executable, especially when source code is unavailable or third-party code is involved.
Bottom line: Build-time SBOMs matter because the release artifact, not the repository snapshot, determines what defenders actually need to track.
Glossary terms: Software Bill of Materials, Source Code SBOM, Build-Time SBOM, Binary SBOM
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11/11/2026 6:06 pm
Build-time SBOM accuracy is a provenance control, not a reporting preference. Once a release artifact diverges from the source tree, the inventory question changes from 'what was declared' to 'what was actually compiled'. That distinction determines whether vulnerability triage maps to the real attack surface or to a theoretical one. Practitioners should treat build-time generation as the point where supply chain evidence becomes operationally trustworthy.
A few things that frame the scale:
- Internal repositories are 6x more likely to contain secrets than public ones (32.2% vs 5.6%), contradicting the assumption that private repos are safe, according to the State of Secrets Sprawl 2026.
A question worth separating out:
Q: When should organisations prefer build-time SBOM generation?
A: Prefer build-time generation when you need the most reliable view of what was assembled into the release artefact. It usually captures dependency resolution more accurately than post-build inspection and gives security and engineering teams a stronger basis for release and audit decisions.
👉 Read our full editorial: Build-time SBOMs turn dependency accuracy into a security control