A registry publishing identity is the account, token, or federated credential allowed to release software artifacts to a package ecosystem. When it is long-lived or overly broad, it becomes a high-value non-human identity that can be abused to poison trusted releases.
Expanded Definition
Registry publishing identity refers to the account, token, service principal, or federated workload credential that is authorised to publish artifacts into a software registry or package ecosystem. In NHI security, it is treated as a privileged release path rather than a simple build credential, because its access can determine what downstream teams consume as trusted software.
Definitions vary across vendors and ecosystems, because some registries rely on static API keys while others support short-lived federation through workload identity or OIDC. The practical distinction is not the authentication method itself, but whether the identity can push production-facing artifacts and whether that authority is tightly scoped, rotated, and auditable. That makes the term closely aligned with identity governance guidance in the NIST Cybersecurity Framework 2.0, especially where software supply chain trust depends on controlled access paths.
NHIMG research on Ultimate Guide to NHIs shows how often organisations underestimate non-human credentials as a class of attack surface, and the same pattern applies to publishing identities when they are left broad or persistent. The most common misapplication is treating the publishing token as a normal developer credential, which occurs when release access is embedded in shared CI/CD variables without least-privilege boundaries.
Examples and Use Cases
Implementing registry publishing identity rigorously often introduces release friction, requiring organisations to weigh deployment speed against tighter control over who or what can publish artifacts.
- A CI pipeline uses a federated identity to publish a container image to a registry only after signed build verification and policy checks pass.
- A package ecosystem maintains a dedicated publishing token for release automation, with separate credentials for staging, testing, and production releases.
- A software vendor rotates registry publishing credentials after every release window to limit the blast radius if the pipeline is compromised.
- An enterprise maps registry publishing rights to a controlled change-management process, so artifact publication requires approval before the identity can be used.
- Security teams investigate a suspicious package upload by tracing the publishing identity back to a compromised build agent or leaked CI secret, similar to patterns documented in the JetBrains GitHub plugin token exposure and the PyPI documentation for package publishing workflows.
These use cases are strongest when paired with artifact provenance, short-lived credentials, and a separation between build and release permissions. For broader supply chain context, NHIMG’s 52 NHI Breaches Analysis shows how quickly trust breaks when non-human credentials are reused or exposed.
Why It Matters in NHI Security
Registry publishing identity is important because it sits at the point where software becomes trusted by others. If that identity is stolen, over-permissioned, or embedded in long-lived automation, an attacker may publish malicious packages, overwrite legitimate releases, or inject backdoored dependencies into downstream environments. That is why NHI governance treats it as a high-impact release credential, not just an operational convenience.
NHIMG research indicates that 80% of identity breaches involved compromised non-human identities such as service accounts and API keys, and the same risk pattern applies to package publishing paths when those credentials are exposed or reused. The issue becomes more acute when organisations store secrets outside managed vaults, because release tokens often end up in CI systems, config files, or developer workstations. This is where the Top 10 NHI Issues and the SPIFFE project both reinforce the same operational lesson: identity for workloads should be explicit, scoped, and replaceable. In governance terms, that aligns with NHI lifecycle control and the access discipline expected in modern Zero Trust programs.
Organisations typically encounter the consequences only after a malicious artifact is published or a trusted package is unexpectedly altered, at which point registry publishing identity 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 and OWASP Agentic AI Top 10 address the attack and risk surface, while NIST CSF 2.0, NIST Zero Trust (SP 800-207) 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-02 | Covers secret handling and misuse patterns for non-human publishing credentials. |
| OWASP Agentic AI Top 10 | A-04 | Agentic release automation needs constrained tool access for artifact publication. |
| NIST CSF 2.0 | PR.AC-4 | Access permissions must be managed to enforce least privilege for release identities. |
| NIST Zero Trust (SP 800-207) | ID | Zero Trust requires workload identities to be explicitly authenticated and authorised. |
| NIST AI RMF | AI systems need controlled software supply chains for models, tools, and dependencies. |
Assign the publishing identity only the minimum registry permissions needed for release.
