A delegated access path is the chain of identities, tokens, connectors, and approvals that lets one system act through another. It becomes a governance concern when the path outlives the original approval or can be reused for actions beyond the intended business purpose.
Expanded Definition
delegated access paths are the practical mechanics of identity delegation in NHI environments: an agent, service account, workload, or integration uses credentials, tokens, or connectors to act on behalf of another approved identity. In mature programs, this includes scoped tokens, federated trust, approval workflows, and downstream authorization checks.
Definitions vary across vendors because some teams treat only direct token exchange as delegation, while others include API gateways, service meshes, and managed connectors. For NHI governance, the important distinction is not the transport layer but whether the delegated path preserves intent, scope, and expiry. That is why OWASP Non-Human Identity Top 10 treats identity sprawl, secret exposure, and weak lifecycle control as overlapping risks rather than isolated issues. A delegated path should be time-bound, attributable, and revocable when the business purpose ends, which aligns with the broader lifecycle guidance in Ultimate Guide to NHIs.
The most common misapplication is assuming a one-time approval makes all later use of the same token acceptable, which occurs when connectors, cached credentials, or inherited permissions continue after the original business task has changed.
Examples and Use Cases
Implementing delegated access paths rigorously often introduces operational friction, requiring organisations to balance automation speed against tighter review, expiry, and revocation controls.
- An AI agent receives a short-lived token to query a ticketing system, but the token is also accepted by a reporting API. That broader reuse must be blocked or separately approved.
- A CI/CD pipeline assumes a deployment role in a cloud account through a federated connector. If the connector remains active after the project ends, the delegated path becomes an unowned access route.
- A support bot opens records in a CRM using a service account tied to a human approver. The approval should scope what records can be touched, not merely whether the bot may authenticate.
- A partner integration calls internal APIs through a gateway token. The path should be revalidated whenever the vendor contract, dataset, or transaction purpose changes.
These patterns are increasingly discussed alongside breach analysis and control mapping in the 52 NHI Breaches Analysis, especially where delegated access outlives the original approval. They also mirror implementation concerns raised in the OWASP Non-Human Identity Top 10, where token misuse and weak lifecycle boundaries often become the real failure point.
Why It Matters in NHI Security
Delegated access paths matter because they convert a single approval into a chain of trust, and every link in that chain expands the blast radius if scope, expiry, or revocation is weak. In NHI programs, this is where identity governance meets operational reality: service accounts, connectors, secrets, and agents can keep acting long after the business reason has disappeared. NHI research shows that only 5.7% of organisations have full visibility into their service accounts, which makes delegated paths especially hard to inventory and review. That visibility gap is discussed in the Ultimate Guide to NHIs — Key Challenges and Risks, where excessive privilege and poor offboarding are recurring themes.
The governance impact is straightforward: if a delegated path cannot be traced back to a current purpose, it should be treated as an exposure, not a convenience. This is why Zero Trust thinking and least privilege both apply, especially where breach patterns show that stale, reused, or overbroad delegated access frequently becomes the entry point for lateral movement. Organisations typically encounter delegated access path risk only after a connector is abused or an agent keeps acting beyond its approval, at which point the term becomes operationally unavoidable to address.
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 Zero Trust (SP 800-207) and NIST CSF 2.0 set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| OWASP Non-Human Identity Top 10 | NHI-02 | Addresses secret and token lifecycle risks that enable reused delegated paths. |
| NIST Zero Trust (SP 800-207) | Zero Trust requires continuous verification for every delegated access decision. | |
| NIST CSF 2.0 | PR.AC | Access control governs who or what may act through a delegated identity path. |
Scope, rotate, and revoke tokens so delegated paths cannot outlive their approved purpose.
