What are common mistakes with SBOM generation?

Where SBOM generation goes wrong

The most common failure is treating the SBOM as a release-note afterthought. If it is created after packaging or deployment, it drifts from the artefact people actually ship, and downstream consumers lose confidence in it. The other recurring error is scope drift: teams capture only direct dependencies and miss build-time components, plugins, vendored code, or transitive libraries that are part of the released software.

A useful way to judge quality is to ask whether the SBOM was derived from the same build context that produced the release. That is the point where dependency resolution is visible and reproducible, which is why SBOMs generated from a developer workstation or a stale repository snapshot are usually weaker than build-native outputs.

Another frequent mistake is publishing an SBOM without enough provenance to show how it was produced. If the document cannot be tied back to a specific build, commit, package, or pipeline run, consumers may not trust it for vulnerability correlation, procurement review, or internal assurance. Format choice also matters: an SBOM that is technically correct but not consumable by the next tool in the chain creates an integration failure, not a useful security artefact. For practical guidance on field coverage, formats, generation workflow, and downstream use, see the SBOM Guide.

What completeness and traceability should an SBOM prove?

A good SBOM should show what is in the release, when it was generated, and what it corresponds to. That means the document needs to reflect the final build output, not an approximate dependency list assembled earlier in the cycle. If the artefact includes compiled binaries, generated code, or embedded third-party components, those elements should be represented as part of the released package where they materially affect risk or supportability.

Traceability is just as important as inventory. An SBOM should be versioned with the release so teams can compare what changed between builds and correlate it with vulnerability advisories, licence obligations, and incident response. Without that release linkage, the file may still be a component list, but it is far less useful as an assurance record.

In mature pipelines, completeness also means deciding what to include consistently. Teams often make ad hoc choices about test libraries, optional features, or build plugins, and that inconsistency makes SBOMs hard to compare over time. The fix is not to add every possible file, but to define a repeatable inclusion rule that matches how the software is built and shipped.

How should teams keep SBOMs usable after release?

SBOMs become stale quickly if they are stored as static artefacts detached from the release process. Once a release is rebuilt, repackaged, or patched, the SBOM should either be regenerated or explicitly versioned so consumers know which software state it represents. That discipline matters because vulnerability and compliance workflows depend on matching the right BOM to the right build.

Tool interoperability is another practical failure point. If an SBOM is emitted in a format that scanners, repositories, procurement systems, or vulnerability management tools cannot parse cleanly, teams end up with manual conversion work and lower adoption. For that reason, format selection should be driven by the consumer ecosystem as much as by the producer pipeline.

Open source dependency management is often where these problems show up first. The Open Source Security Guide covers the wider dependency controls that make SBOMs more reliable, including transitive dependency visibility and trust in the source chain.

Risk and Threat Considerations

Bad SBOMs create operational blind spots. If the file is late, incomplete, or disconnected from the released artefact, security teams may miss vulnerable components, procurement teams may make decisions on stale data, and incident responders may not know which build actually carried the exposure.

Failure mechanism: The SBOM is generated outside the build pipeline, omits build-time or transitive components, or loses linkage to the exact release, so the inventory no longer matches the software in use.

Impact: Vulnerability correlation becomes unreliable, trust in the artefact drops, and the organisation can misjudge both exposure and remediation priority.

Practitioner Guidance

What to verify: Confirm that the SBOM is produced from the build that emits the release artefact, not from a separate inventory step. Check that build-time, transitive, and embedded components are represented according to the project’s inclusion rules.

What to measure: Track the percentage of releases with an SBOM generated in-pipeline, the number of SBOMs that can be matched to a release hash or build identifier, and the rate of downstream tool parsing success.

Decision rule: If an SBOM cannot be tied to the shipped artefact, treat it as advisory only until the build pipeline is fixed and the document is regenerated. If the consumer toolchain cannot ingest the format reliably, standardise the export before broad distribution.

Practitioner takeaway: The most useful SBOM is not the most detailed one, it is the one that accurately describes the software you actually shipped and can be trusted by the people and tools that need it.

Related resources from NHI Mgmt Group

• What are the most common mistakes teams make when producing an SBOM for a defense contract?
• What are common mistakes with synthetic data generation?
• What are common mistakes with Retrieval Augmented Generation (RAG) Security?
• What are common mistakes with SBOM quality?