Public Sector
Hardened, compliance-aligned artefacts and signed provenance that help government and defence organisations accelerate accreditation and secure restricted environments.
The challenge
Government agencies, defence contractors and federal systems integrators must move software through accreditation processes that demand evidence of hardening, provenance and configuration alignment with standards such as FISMA, NIST 800-53 and DoD STIGs. Assembling this evidence from general-purpose open source images is labour-intensive, and unresolved vulnerabilities frequently force teams into risk acceptances or POA&M justifications that slow the path to an Authority to Operate.
Many public sector systems also operate in restricted, disconnected or air-gapped environments where frequent patching is impractical, so any vulnerability present at deployment time can persist for months. At the same time, open source software itself is an increasing target for AI-assisted supply-chain attacks, adding a further dimension of risk that agencies must account for when selecting components for mission-critical systems.
Key solutions
Minimal, hardened artefacts
Programme teams adopt minimal container images built and continuously rebuilt from source, reducing the vulnerability count present at any given time. This gives accreditation teams a lower starting baseline to work from and reduces the number of findings that need to be tracked or waived during RMF scan gates.
FIPS- and STIG-aligned artefacts
Teams select images built with FIPS-validated cryptographic modules and STIG-hardened configurations, aligning the underlying artefact with the controls assessors expect to see. This reduces the manual hardening and configuration work that would otherwise be needed to bring a general-purpose image into compliance.
Signed provenance and SBOMs
Security and compliance teams attach signed SLSA provenance attestations and SBOMs to each artefact, giving assessors a verifiable record of what is running and where it came from. This directly supports the software composition and supply-chain evidence increasingly required in federal acquisition and security reviews.
Accreditation support
Programme and ISSO teams use the reduced finding count and available compliance documentation to work through RMF scan gates with fewer risk acceptances, supporting a path toward continuous ATO. This changes accreditation from a one-off hurdle into an ongoing, more manageable process.
Daily-rebuilt sources for restricted systems
Teams operating disconnected or air-gapped systems select artefacts rebuilt daily from source before deployment, so the system starts from a near-zero CVE baseline. Because the starting point is lower, vulnerability accumulation over months without connectivity stays within a manageable range.
Supply-chain and AI-attack protection
Agencies restrict direct access to public package registries and rely on continuously monitored, remediated sources for open source components, reducing exposure to AI-assisted attacks targeting the open source supply chain. This is treated as part of a broader effort to protect critical infrastructure software.
Core capabilities
FIPS-validated image variants
A catalogue of image variants built with FIPS-validated cryptography for systems requiring certified modules.
STIG-hardened configuration
Images configured to align with DoD Security Technical Implementation Guides, reducing manual hardening effort.
SLSA provenance attestations
Signed build provenance that documents how and where an artefact was produced, supporting supply-chain assurance.
Continuous rebuild cadence
Artefacts rebuilt from source on a defined schedule, keeping vulnerability counts low ahead of deployment windows.
Athena open source protection coalition
Participation in an industry effort to identify and patch AI-driven attacks against open source components.
Working toward an Authority to Operate
A federal systems integrator is preparing a new application for an Authority to Operate and needs to clear an RMF scan gate that has historically generated a long list of findings requiring risk acceptances. The team rebuilds the application on minimal, FIPS-validated and STIG-aligned images rather than general-purpose base images, and attaches the signed provenance and SBOM generated at build time to the accreditation package. When the assessor runs the scan, the finding count is materially lower than on the previous version, and the remaining items are documented rather than requiring case-by-case justification. The reduced volume of open findings and the availability of provenance evidence shortens the assessment cycle and gives the ISSO a clearer basis for sign-off.
- 1Rebuild the application on FIPS-validated, STIG-aligned artefacts
- 2Attach signed provenance and SBOMs to the accreditation package
- 3Present assessors with a lower, better-documented finding baseline
Expected outcomes
- Fewer scan-gate findings requiring risk acceptances or POA&Ms
- Clearer, verifiable evidence of provenance and configuration for assessors
- More manageable vulnerability accumulation on disconnected or air-gapped systems
- Reduced manual hardening effort ahead of accreditation milestones
- Better alignment between deployed artefacts and applicable compliance frameworks
How CyberLane helps
CyberLane helps public sector programmes and their integrators work out where hardened, compliance-aligned artefacts fit within an existing ATO or RMF timeline, and how to sequence adoption without disrupting systems already in accreditation. We advise on architecture for restricted and air-gapped deployments, help build the business case for reduced accreditation effort, and provide oversight through proof-of-concept and rollout stages, coordinating detailed image and pipeline work with Chainguard or an approved integrator.
- Review of current artefact provenance and finding volume against accreditation requirements
- Adoption roadmap sequenced against upcoming RMF or ATO milestones
- Architecture guidance for restricted, disconnected and air-gapped deployments
- Business case for reduced accreditation and remediation effort
- Implementation oversight through proof-of-concept and handover
CyberLane is independent and works on the decision rather than the deployment. Product-specific delivery is coordinated with the vendor or a qualified implementation partner.
Official vendor sources
- Chainguard — Public sector solutions
- Chainguard — Golden images
- Athena — protecting open source from AI attacks
Capability descriptions are based on the vendor's published materials; CyberLane's wording is independently written.
Evaluating Chainguard for Public Sector?
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