A locator is a reference used to find a resource, object, or item in a system. In IT, it can mean a file path, URL, registry entry, or other address-like pointer that identifies where something resides or how to access it. The exact meaning depends on the platform.
What Locators Do
A locator is the pointer that tells a system where to find something. That can be a file path, URL, registry key, database reference, object identifier, or another address-like value. The concept is broader than a single technology: the same idea appears in operating systems, web applications, APIs, configuration stores, and user interfaces.
Because a locator identifies a location rather than the thing itself, it is often a dependency rather than the asset of interest. That makes locators useful for navigation and automation, but also fragile when the underlying resource moves, is renamed, or is removed.
Common Forms of Locator
Different platforms express the same basic idea in different ways. A file system path locates a file on disk, a URL locates a web resource, a registry entry points to a Windows configuration value, and a database key or object reference locates a record or object in a structured store.
In user-facing software, a locator may be hidden behind a link, bookmark, shortcut, or menu reference. In backend systems, it may appear in configuration files, environment variables, code, logs, or API responses. The platform decides the syntax, but the function stays the same: it is a reference used to retrieve or address something else.
Why Locator Accuracy Matters
Locator accuracy affects both reliability and security. If a locator is stale, ambiguous, or malformed, users and services may fail to reach the intended resource. If it is overly permissive or points to the wrong target, it can expose the wrong data, break workflows, or send requests to an unintended location.
Locators also influence trust. Many systems treat a locator as authoritative, so a bad redirect, a manipulated file path, or a poisoned reference can change what content is loaded or which object is acted on. In that sense, the locator is not just a convenience string, it is part of the control plane for access and retrieval.
How Locators Are Used in Practice
Practitioners use locators to make systems discoverable, configurable, and interoperable. They are common in code, documentation, integration points, and operational tooling because they let one component refer to another without embedding the resource itself.
That convenience comes with a maintenance burden. Locator formats vary by platform, and the same conceptual reference may behave differently across operating systems, browsers, cloud services, or content stores. The safer approach is to treat locators as managed references, validate them where they enter a system, and update them when the target changes.
Risk and Threat Considerations
Locators can become a security issue when systems trust them too much. A malicious or corrupted locator may redirect a user or service to an unintended file, endpoint, or object, and a weakly validated reference can contribute to path traversal, open redirect, object reference abuse, or misrouting.
Failure mechanism: The system accepts a locator as if it were a trusted pointer, then resolves it without sufficient validation, normalization, or authorization checks.
Impact: Attackers or faulty automation can cause unauthorized access, disclosure of sensitive resources, workflow disruption, or retrieval of the wrong object, especially where the locator is used to make access or routing decisions.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
MITRE ATT&CK addresses the attack and risk surface, while NIST SP 800-53 Rev 5, OWASP ASVS, CIS Controls v8 and NIST CSF 2.0 set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| NIST SP 800-53 Rev 5 | AC-6 — Least Privilege | Locator resolution can expose the wrong resource without tight access limits. |
| Recommendation — Restrict resolution and follow-on access to only the resources each actor needs. | ||
| OWASP ASVS | V8 — Authorization | Locators can drive object selection and must not bypass access checks. |
| Recommendation — Verify that object and resource references cannot bypass authorization controls. | ||
| MITRE ATT&CK | T1036 — Masquerading | Attackers may alter references or names to make a malicious target look legitimate. |
| Recommendation — Detect deceptive naming and reference changes that conceal malicious destinations. | ||
| CIS Controls v8 | CIS-4 — Secure Configuration of Enterprise Assets and Software | Locator reliability depends on consistent, controlled configuration and reference handling. |
| Recommendation — Standardize and harden reference formats so endpoints resolve predictably. | ||
| NIST CSF 2.0 | PR.DS-01 — Data-at-rest is protected | Accidental exposure through bad locators can reveal data that should remain protected. |
| Recommendation — Protect stored resources so a bad reference does not expose sensitive content. | ||
Practitioner Guidance
What to watch for: Treat locators as input, not as proof of legitimacy. Review how each platform resolves paths, URLs, object references, and registry values, then confirm that those references cannot be manipulated to cross trust boundaries or select unintended targets.
Governance implication: Ownership matters because locator drift is usually an operational issue before it becomes a security issue. Keep references current, remove dead pointers, and make sure systems that consume locators fail safely when the target is missing or unexpected.
Related resources from NHI Mgmt Group
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Reviewed and updated by the NHIMG editorial team on November 2, 2026.
NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org