Who is accountable for CLI session security when tokens are stored locally?

Why This Matters for Security Teams

Local token storage in a CLI is not a convenience decision, it is an identity control decision. Once a token lands on disk, the question becomes who owns its lifecycle, how fast it expires, and what happens when the host is compromised. NHI Management Group sees the same pattern across breach writeups and operational reviews: token exposure is rarely caused by one bad setting, but by weak ownership across application, identity, and endpoint controls. The Guide to the Secret Sprawl Challenge is a useful reminder that secrets spread quickly once they are stored outside a governed boundary.

This is also why accountability cannot stop at the developer experience layer. The application team may implement the cache, keychain, or file-based store, but the identity team still owns the authentication policy that determines whether the token should exist, how it is renewed, and whether it can be revoked centrally. NIST guidance reinforces that identity and access decisions must be managed as part of a broader control system, not as an afterthought to software distribution, and the NIST Cybersecurity Framework 2.0 keeps that accountability model anchored in governance and continuous control. In practice, many security teams only discover this gap after a developer laptop, build agent, or shared workstation has already turned local token storage into an incident path.

How It Works in Practice

For locally stored CLI tokens, accountability is split by control plane, not by convenience. The application team owns the implementation details: where the token is stored, whether it is encrypted at rest, how refresh is handled, and whether the CLI deletes or rotates credentials on logout, device change, or policy failure. The identity team owns the upstream rules: whether the token is issued at all, what scopes it receives, whether step-up authentication is required, and what revocation and session limits are enforced for the enterprise. That division matters because a secure-looking local store can still preserve an over-privileged token for far too long.

Good practice is to prefer short-lived, narrowly scoped credentials with explicit expiry and revocation paths. When the CLI supports device-bound or hardware-backed storage, that reduces theft risk, but it does not replace governance. The Salesloft OAuth token breach shows how exposed tokens can become a direct path into enterprise systems once they are outside intended control. For broader context on how local exposure and token duplication compound risk, see NHI Management Group’s reporting on the Guide to the Secret Sprawl Challenge and the vendor-reported exposure rates in The State of Non-Human Identity Security.

• Application teams should implement encrypted local storage, TTL enforcement, logout revocation, and secure token wipe.
• Identity teams should define scope limits, session duration, conditional access, and enterprise revocation policy.
• Both teams should verify that audit logs capture issuance, refresh, reuse, and invalidation events.
• Shared-device and build-agent scenarios should require stricter handling than a single-user workstation.

These controls tend to break down when CLI tokens are copied into automation, because the same local session model is then reused in non-interactive environments with much weaker human oversight.

Common Variations and Edge Cases

Tighter token controls often increase friction for developers, so organisations have to balance usability against the risk of long-lived local sessions. Current guidance suggests there is no universal standard for every CLI pattern yet, especially when the same tool is used by humans, scripts, and CI jobs. That means the accountability model should be explicit in policy, with exceptions documented rather than implied.

Edge cases matter. A token stored in an OS keychain is still a local secret, but it is not equivalent to a token hard-coded in a config file or checked into dotfiles. A token on a personal laptop has different risk than the same token on a shared jump box or ephemeral build runner. If the CLI supports browser-based device flow, the identity team may own the upstream session policy while the application team still owns local persistence and cleanup. For risk-based session handling, NIST’s identity and access controls are the relevant reference point, while NHI Management Group’s 2025 State of NHIs and Secrets in Cybersecurity highlights how often tokens remain active after offboarding and how frequently secrets are duplicated across environments.

The practical rule is simple: if the token is local, the application team owns the storage and lifecycle mechanics, but the identity team owns the trust decision behind the session. Best practice is evolving toward shared accountability with clear control boundaries, because local storage without central policy quickly turns into unmanaged standing access.

Related resources from NHI Mgmt Group

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• How should security teams prioritise NHI remediation in cloud environments?
• How should security teams govern non-human identities at scale?
• How should security teams govern non-human identities for compliance?