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Authority Boundary

Excessive Permissions in AI Agents

Least privilege must apply to agent tools, data access, identities, approval paths, and downstream automations.

An oversized permission connector reaches beyond the small workflow scope into unrelated systems.
Limit authority to the task.

Definition

What is Excessive Permissions?

Excessive permissions occur when an agent can read, decide, approve, or change more than the business process requires.

The blast radius of a prompt, retrieval, or tool-control failure is defined by what the agent can actually access and execute.

Attack Scenarios

Where this shows up in real agent workflows.

The exact exposure depends on authority, connected systems, identity, approval state, and evidence quality.

01

Scenario

A service account can read all customer files.

02

Scenario

The agent can both prepare and execute irreversible changes.

03

Scenario

A pilot connector keeps broad write scopes in production.

Business Impact

Why it matters

  • Larger breach or misuse impact from one workflow failure.
  • Harder production approval from security and governance teams.
  • Unclear proof that actions stayed within business purpose.

Exploit Path

How attackers exploit it

  • Find over-broad credentials or tools.
  • Use benign requests or injected context to reach privileged operations.
  • Exploit weak separation between read, propose, approve, and execute.

Detection and Testing

How to detect and test for excessive permissions.

Detection signals

  • Admin or tenant-wide service accounts.
  • Unused tools available to the agent.
  • No mapping between task, permission scope, and owner.

Test methods

  • Inventory authority for each workflow.
  • Attempt out-of-scope reads and writes with realistic roles.
  • Separate propose, approve, and execute capabilities.

Related Topics

Review adjacent failure paths.

Back to Autonomous AI Threat Library

Unsafe Tool Use

Unsafe tool use occurs when an agent invokes a legitimate tool with the wrong purpose, parameters, timing, destination, or authority.

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Approval Bypass

Approval bypass occurs when an agent completes, influences, or routes around a required human or system approval.

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Audit Gaps

Audit gaps occur when teams cannot reconstruct why an agent acted, which control applied, who owned the decision, or what evidence supports the outcome.

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