A credential present in a live session that authorises actions on behalf of a user or service while the environment is active. In developer tooling, runtime tokens often function like non-human identities because they can be reused, exchanged, or abused without the human being directly involved.
Expanded Definition
A runtime token is a credential that exists only while a session, job, or tool invocation is active, but its temporary nature does not make it low risk. In NHI practice, these tokens often represent delegated authority for applications, agents, CI/CD jobs, or developer tools, and they may be exchanged for downstream access or replayed within their validity window.
Definitions vary across vendors, but the core security question is the same: who or what can act when the token is live, and how far does that authority propagate through APIs, cloud services, and internal tools? Runtime tokens sit between identity proofing and operational execution, which makes them different from static secrets such as long-lived API keys. They are also closely related to OAuth access tokens, bearer tokens, and short-lived service credentials, but not all runtime tokens are issued or managed under the same protocol. For a governance baseline, align handling with the NIST Cybersecurity Framework 2.0 and treat token issuance, scope, and revocation as operational controls, not just application details.
The most common misapplication is assuming expiry alone makes a runtime token safe, which occurs when long-lived refresh paths, broad scopes, or poor storage practices extend access well beyond the intended session.
Examples and Use Cases
Implementing runtime tokens rigorously often introduces operational friction, requiring organisations to balance developer convenience and automation speed against tighter scope, shorter lifetimes, and stronger revocation discipline.
- A developer signs into a local tool and receives a token that can call cloud APIs for the current session only, reducing password reuse while still exposing privileged actions if the workstation is compromised.
- A CI/CD runner exchanges a workload credential for a token that deploys code or reads artifacts, making token scope and runner hardening central to pipeline security. This pattern is frequently discussed in the Guide to the Secret Sprawl Challenge.
- An AI agent uses a runtime token to access a ticketing system, source control, or SaaS API during a task, which creates an agentic trust boundary that must be logged and constrained.
- A sales or support integration receives a bearer-style token to synchronise customer data, similar to the token exposure dynamics seen in the Salesloft OAuth token breach.
- Security teams review token lifetime, audience, and revocation against guidance from NIST Cybersecurity Framework 2.0 when deciding whether a session credential is acceptable for production access.
Why It Matters in NHI Security
Runtime tokens matter because they are often the practical bridge between human intent and machine action. If they are over-scoped, copied into logs, shared in chat, or left valid after offboarding, they become non-human identities in effect even when they were issued as temporary session artifacts. That is why runtime token governance belongs in the same conversation as secrets management, agent authorisation, and workload identity.
NHIMG research shows the scale of exposure risk: Entro Security found that 44% of NHI tokens are exposed in the wild, often in tools like Teams, Jira, Confluence, and code commits. That pattern is especially dangerous because exposure is frequently discovered after the token has already been replayed or chained into broader access. The same issue appears in breach reporting such as the JetBrains GitHub plugin token exposure, where a session or integration token can become the entry point for lateral movement. Runtime token controls should therefore include issuance logging, scope minimisation, rapid revocation, and dependency mapping across every system that accepts the token.
Organisations typically encounter runtime token risk only after an account takeover, pipeline compromise, or SaaS breach exposes how much authority a supposedly temporary credential actually carried, 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 CSF 2.0 and NIST SP 800-63 set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| OWASP Non-Human Identity Top 10 | NHI-01 | Runtime tokens are short-lived NHI credentials that can still be abused if over-scoped or exposed. |
| NIST CSF 2.0 | PR.AC-1 | Access credentials for active sessions map to identity and access governance requirements. |
| NIST SP 800-63 | Digital identity guidance informs token assurance, binding, and lifecycle handling. |
Limit runtime token issuance to approved identities and verify session access continuously.
Related resources from NHI Mgmt Group
- Should organisations prioritise runtime attestation over faster token rotation?
- How should security teams apply runtime authorization to token issuance in multi-application environments?
- What is the difference between runtime protection and NHI lifecycle management?
- Why is OAuth token management critical in cloud environments?
Deepen Your Knowledge
Reviewed and updated by the NHIMG editorial team on June 10, 2026.
NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org
