ariba_approval_list_approvables
AI agents call ariba_approval_list_approvables to retrieve information from SAP Ariba MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a Read operation—it retrieves or queries approval data without modifying, deleting, or executing actions. In a procurement/approval context, listing approvable items could expose sensitive contract, sourcing task, or supplier information to an AI agent, warranting medium severity due to potential information disclosure in enterprise procurement systems.
From the tool's definition Tool name 'ariba_approval_list_approvables' indicates querying/listing approvable items for approval workflows. The 'list' operation is non-destructive retrieval. However, the empty description limits full context on what data is exposed.
Attacks that exploit this kind of access
ariba_approval_list_approvables. It is categorised as a Read tool in the SAP Ariba MCP Server MCP Server, which means it retrieves data without modifying state.
Register the SAP Ariba MCP Server MCP server in PolicyLayer and add a rule for ariba_approval_list_approvables: 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 SAP Ariba MCP Server. Nothing to install.
ariba_approval_list_approvables 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 ariba_approval_list_approvables 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 ariba_approval_list_approvables. 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.
ariba_approval_list_approvables is provided by the SAP Ariba MCP Server MCP server (vanshikadhole/mcpserver). 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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