Many teams treat approvals as if they are a substitute for entitlement design, but approvals only govern how access is granted. If too many identities already have standing privilege, the control arrives too late. Effective PAM uses approvals to limit exceptional elevation, not to normalise persistent admin access.
Why This Matters for Security Teams
Workflow approvals are easy to overstate because they feel like control, but in PAM they only confirm that a request has been reviewed. If the default state already grants broad standing privilege, the approval step does not reduce exposure, it just documents it. That is why entitlement design, role hygiene, and elevation boundaries matter more than queueing requests for sign-off. NIST’s NIST Cybersecurity Framework 2.0 puts access governance inside a broader risk process, not as a standalone ceremony.
NHI Management Group’s research shows how often organisations skip the hard part: 97% of NHIs carry excessive privileges, and only 20% have formal offboarding and revocation processes in place. That combination means approvals are often layered on top of weak baselines rather than used to constrain rare exceptions. When that happens, approvers become a checkpoint for normal admin use instead of a safeguard for unusual elevation. The pattern is visible in real incidents such as the BeyondTrust API key breach, where access governance gaps matter only after the blast radius is already established. In practice, many security teams discover approval workflow weakness only after standing privilege has already normalized routine abuse.
How It Works in Practice
Effective PAM uses approvals as an exception-handling control. The workflow should answer a narrow question: does this person or workload need temporary elevation for this task, in this context, right now? That requires a clean baseline of least privilege, a defined entitlement model, and short-lived elevation that expires automatically. Approvals should not be the mechanism that justifies persistent admin access.
A practical implementation usually includes:
- Role and entitlement cleanup before the workflow is enabled, so approvers review exceptions rather than compensate for overprovisioning.
- Just-in-time elevation with explicit time-to-live, task scope, and revocation at completion.
- Step-up approval for high-risk actions, such as production changes, key export, or policy override.
- Separation of request, approval, and execution, so the approver is not also the operator for sensitive changes.
- Logging that links the approval reason to the actual privileged command or session outcome.
For non-human identities, the same logic applies to service accounts, CI/CD jobs, and automation users. The NHI Mgmt Group guide on Ultimate Guide to NHIs highlights that NHIs outnumber human identities by 25x to 50x, which is why approval-heavy models collapse if the approval queue becomes the primary access gate. The better pattern is to combine PAM with entitlement governance, secrets rotation, and continuous review, not to use approvals as a substitute for all three. Where organisations align this with NIST Cybersecurity Framework 2.0, they place approvals inside identify, protect, and govern workflows rather than treating them as the control itself. These controls tend to break down in environments with sprawling legacy admin groups, shared break-glass accounts, and no reliable owner for each privilege set because approvers cannot validate what the baseline never defined.
Common Variations and Edge Cases
Tighter approval workflows often increase operational friction, requiring organisations to balance speed against assurance. That tradeoff is real, especially in production support, incident response, and regulated change windows where delays can create their own risk. Best practice is evolving, but current guidance suggests using different approval paths for routine elevation, emergency access, and machine-driven access rather than forcing one queue to handle everything.
One common mistake is applying the same approval model to humans and NHIs. Human access may justify manager or system-owner approval, but workload access usually needs policy-based decisions, secret rotation, and runtime constraints instead of manual sign-off. Another edge case is break-glass access: it should remain rare, heavily logged, and post-validated, not become a convenient bypass for poor role design. Approval workflows also fail when approvers lack context, such as asset criticality, data sensitivity, or whether the request matches a sanctioned change. In those cases, the workflow looks mature while still allowing routine privilege creep.
NHI Management Group’s research on the Ultimate Guide to NHIs is clear that excessive privilege and weak offboarding are the underlying risk, while approvals are only one layer of control. The operational question is not whether access was approved, but whether the request should have existed in standing form at all.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
OWASP Non-Human Identity Top 10 address the attack and risk surface, while NIST CSF 2.0 and NIST AI RMF set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| OWASP Non-Human Identity Top 10 | NHI-03 | Directly addresses excessive privilege and weak entitlement design. |
| NIST CSF 2.0 | PR.AC-4 | Access management control supports least privilege and approved elevation. |
| NIST AI RMF | Useful for governance of automated and context-aware access decisions. |
Map approval workflows to least-privilege access reviews and enforce scoped, time-bound elevation.
Related resources from NHI Mgmt Group
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Reviewed and updated by the NHIMG editorial team on July 8, 2026.
NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org
