Returns the OAuth Bearer token (Tableau JWT) used to authenticate the current session. This tool provides the raw Tableau JWT Bearer token associated with the current session for use by client applications. The token value is never exposed to the model. This tool requires no input — it operates o...
AI agents call get-oauth-token to retrieve information from Tableau 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 in that it retrieves/queries existing authentication credentials without modifying any data. However, severity is high because the returned JWT token could be misused by an attacker to impersonate the authenticated session and make unauthorized API calls to Tableau, access sensitive data, or perform other actions within the scope of the token's permissions.
From the tool's definition The tool 'get-oauth-token' returns the OAuth Bearer token (Tableau JWT) used to authenticate the current session.
Attacks that exploit this kind of access
Returns the OAuth Bearer token (Tableau JWT) used to authenticate the current session. This tool provides the raw Tableau JWT Bearer token associated with the current session for use by client applications. The token value is never exposed to the model. This tool requires no input — it operates on the token already associated with the current session. When to use: - Retrieving the Tableau JWT Bearer token for client-side operations - Obtaining the token for direct Tableau API calls from the client application - Token inspection or validation by the client Important: This tool only works with Bearer token authentication (Tableau OAuth server mode) and is not visible to the model. It is categorised as a Read tool in the Tableau MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Tableau MCP Server MCP server in PolicyLayer and add a rule for get-oauth-token: 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 Tableau MCP Server. Nothing to install.
get-oauth-token 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-oauth-token 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-oauth-token. 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-oauth-token is provided by the Tableau MCP Server MCP server (tableau/tableau-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.