set_postgresql_privileges
Grant a PostgreSQL user access to a database
This record as markdown: /tools/0xhayd3n-cpanel-mcp-server/set-postgresql-privileges.md
What set_postgresql_privileges does on cPanel MCP Server
AI agents use set_postgresql_privileges to create or update resources in cPanel MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your cPanel MCP Server environment.
Why set_postgresql_privileges is rated Medium
Granting database privileges is a Write operation because it creates or modifies access control configuration. The severity is high because misconfigured database privileges can expose sensitive data to unauthorized users or allow privilege escalation. An AI agent could inadvertently grant excessive permissions to the wrong user or database, leading to data breaches.
From the tool's definition "Grant a PostgreSQL user access to a database" — this modifies user-database permissions, creating a persistent relationship that allows database access. This is a reversible data/access modification (grants can be revoked), distinct from destructive deletion.
Attacks that exploit this kind of access
The rule that runs set_postgresql_privileges safely
PolicyLayer is an MCP gateway: it sits between your AI agents and cPanel MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For set_postgresql_privileges, this is the rule to start with:
set_postgresql_privileges stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect cPanel MCP Server, apply this rule, and every set_postgresql_privileges call is checked against it from then on.
Questions about set_postgresql_privileges
Grant a PostgreSQL user access to a database. It is categorised as a Write tool in the cPanel MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the cPanel MCP Server MCP server in PolicyLayer and add a rule for set_postgresql_privileges: 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 cPanel MCP Server. Nothing to install.
set_postgresql_privileges is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the set_postgresql_privileges 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 set_postgresql_privileges. 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.
set_postgresql_privileges is provided by the cPanel MCP Server MCP server (0xhayd3n/cpanel-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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