Get details of an update set (requires SCRIPTING_ENABLED=true)
AI agents call get_changeset to retrieve information from ServiceNow-MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool retrieves details of an update set, which is a read-only operation with no stated capacity to modify, delete, or execute code. However, update sets in ServiceNow can contain sensitive scripting and configuration information, elevating severity from low to medium.
From the tool's definition Tool name 'get_changeset' combined with description 'Get details of an update set' indicates retrieval of information without modification. The requirement for SCRIPTING_ENABLED=true suggests this may access sensitive configuration data.
Attacks that exploit this kind of access
Get details of an update set (requires SCRIPTING_ENABLED=true). It is categorised as a Read tool in the ServiceNow-MCP MCP Server, which means it retrieves data without modifying state.
Register the ServiceNow- MCP server in PolicyLayer and add a rule for get_changeset: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches ServiceNow-MCP. Nothing to install.
get_changeset is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_changeset rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for get_changeset. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
get_changeset is provided by the ServiceNow- MCP server (tedorigawa001/servicenow-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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