k8s_get_nodes
AI agents call k8s_get_nodes to retrieve information from Kubernetes MCP Server – 5G Core Edition without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves cluster node state information. While the description is empty, the naming convention and sibling tools strongly indicate a read-only query. Severity is medium because node information (IPs, resource capacity, labels) could be useful for reconnaissance or lateral movement planning in a compromised cluster, but the tool itself performs no modifications or external actions.
From the tool's definition Tool name 'k8s_get_nodes' indicates retrieval of Kubernetes node objects; the verb 'get' and context of sibling read-only tools (k8s_get_pods, k8s_get_configmaps, k8s_get_deployments, k8s_get_events, k8s_get_pod_logs) confirm this is a query operation with no…
Attacks that exploit this kind of access
k8s_get_nodes. It is categorised as a Read tool in the Kubernetes MCP Server – 5G Core Edition MCP Server, which means it retrieves data without modifying state.
Register the Kubernetes MCP Server – 5G Core Edition MCP server in PolicyLayer and add a rule for k8s_get_nodes: 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 Kubernetes MCP Server – 5G Core Edition. Nothing to install.
k8s_get_nodes 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 k8s_get_nodes 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 k8s_get_nodes. 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.
k8s_get_nodes is provided by the Kubernetes MCP Server – 5G Core Edition MCP server (sanzco/mcp5g). 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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