AI agents call get_all_memories to retrieve information from Mem0 without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves data from a memory service without creating, modifying, or deleting any information. It is a read-only operation with no side effects. The low severity reflects that unauthorized access to memories may have privacy implications but is not immediately destructive or financially harmful.
From the tool's definition Tool name 'get_all_memories' and description '获取所有记忆' (Chinese for 'retrieve all memories') indicates a retrieval operation with no modification.
Attacks that exploit this kind of access
获取所有记忆. It is categorised as a Read tool in the Mem0 MCP Server, which means it retrieves data without modifying state.
Register the Mem0 MCP server in PolicyLayer and add a rule for get_all_memories: 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 Mem0. Nothing to install.
get_all_memories 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_all_memories 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_all_memories. 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_all_memories is provided by the Mem0 MCP server (mem0-mcp-server). 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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