How can organisations reduce trust sprawl in software delivery?

Why This Matters for Security Teams

Trust sprawl is what happens when software delivery accumulates too many identities that can act on behalf of pipelines, tools, and environments. Build systems, release agents, scanners, and integrations often inherit broad access because teams optimise for speed, not explicit ownership. That leaves standing credentials, unclear accountability, and a growing pool of delegated trust that is hard to unwind later.

The risk is not abstract. NHI Mgmt Group research shows that 97% of NHIs carry excessive privileges, and only 5.7% of organisations have full visibility into their service accounts, which makes hidden pipeline trust especially difficult to control. Current guidance from NIST Cybersecurity Framework 2.0 supports explicit governance, asset visibility, and controlled access as core security outcomes, while Ultimate Guide to NHIs — Key Challenges and Risks highlights how quickly unmanaged machine identities can outgrow the controls intended to secure them.

In practice, many security teams encounter trust sprawl only after a release path, service account, or third-party integration has already been over-permissioned for months.

How It Works in Practice

Reducing trust sprawl starts with treating every software delivery identity as a governed NHI, not as an incidental by-product of CI/CD. That means inventorying build runners, deployment bots, signing services, artifact repositories, secrets brokers, and API integrations, then mapping exactly what each identity is allowed to do. Where the access pattern is stable and narrow, RBAC can still help, but for delivery systems that change by stage or task, JIT access is usually safer than long-lived roles. The goal is to issue credentials only when a job needs them, make them short-lived, and revoke them automatically when the task ends.

Operationally, this works best when teams pair least privilege with attestation and explicit ownership. Provenance checks can confirm that a workload is the expected build or release job, while workload identity mechanisms such as SPIFFE or OIDC tokens give cryptographic proof of what the workload is before access is granted. That matters because static secrets embedded in pipelines tend to spread across repos, runners, and config files, creating more trust edges than teams realise. The NHI Mgmt Group guide notes that 96% of organisations store secrets outside secrets managers in vulnerable locations, which makes trust sprawl much easier to create than to remove. See also Ultimate Guide to NHIs — Key Challenges and Risks and NIST Cybersecurity Framework 2.0 for the governance and access-control principles behind this approach.

• Replace shared pipeline secrets with per-job credentials that expire quickly.
• Separate human approval from machine execution so releases do not inherit blanket trust.
• Review third-party integrations as if they were permanent insiders, not temporary tools.
• Log every delegation decision so ownership, scope, and revocation are auditable.

These controls tend to break down in legacy release chains where one static credential still serves multiple environments, because the pipeline has no reliable way to distinguish routine execution from excessive delegated trust.

Common Variations and Edge Cases

Tighter trust controls often increase release overhead, requiring organisations to balance delivery speed against revocation discipline and change management. That tradeoff is real, especially in environments with many ephemeral jobs, air-gapped build stages, or vendor-managed automation. There is no universal standard for how granular every delivery identity should be, but current guidance suggests that the more autonomous and reusable the access path, the more important short-lived credentials, explicit attestation, and frequent review become.

Some teams overcorrect by pushing everything into a single PAM workflow, which can help with visibility but may not fit high-frequency CI/CD if approvals become too slow. Others rely on RBAC alone, which is useful for coarse separation of duties but weak against pipeline identities that behave differently by branch, artifact, or deployment target. In those cases, policy decisions should be evaluated at request time rather than assumed from a static role. Ultimate Guide to NHIs — Key Challenges and Risks is a useful reference when deciding which identities merit stronger controls, and NIST Cybersecurity Framework 2.0 remains a practical baseline for access governance and continuous review.

In regulated or highly automated environments, the best outcome is not zero access, but zero unnecessary standing access. That usually means accepting a modest operational cost to remove the much larger cost of latent, undocumented trust.

Related resources from NHI Mgmt Group

• How can organisations reduce secret leakage in ServiceNow at scale?
• How do organisations reduce false positives in secret detection pipelines?
• When should organisations re-evaluate CI trust assumptions?
• Why do non-human identities complicate zero trust architecture?