TeamMCP is an MCP-native collaboration server that enables AI agents and humans to communicate through shared channels, direct messages, and integrated task management. It provides a persistent layer for real-time collaboration with full-text search and a centralized web dashboard.
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Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse
Anthropic's MCP TypeScript SDK has a ReDoS vulnerability
Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default
ws: Memory exhaustion DoS from tiny fragments and data chunks
ws: Uninitialized memory disclosure
AGENTS_BASE_DIRYes — Root path for Agent working directories; start_agent/stop_agent depend on thisAGENT_NAME"": "{agent_name}",AUTH_MONITOR_CANARYAUTH_MONITOR_FILE_CAPAUTH_MONITOR_SCAN_DEPTHCODEX_EXECONTEXT_TOKEN_PATHCRED_PROBE_INTERVAL_MINFALLBACK_FAILED_RECOVERY_MSGATE2_ENABLEDMCP_HTTP_PORTMEMORY_ENGINEMEMORY_INTERNALIZEMEMORY_LLM_KEYPREFLIGHT_DB_MAX_BYTESPROGRAMDATAPROGRAMFILESRETENTION_SWEEPRETRY_SIGNOFFSESSION_IDLE_MSSESSION_REVIEW_MAXSYSTEMROOTTEAMMCP_AGENTS_DIRTEAMMCP_AUTO_RESTARTAgents offline for more than 30 seconds can be auto-restarted (enable via =1, disabled by default). Intentionally stopped Agents do not trigger false alarms.TEAMMCP_BATCH_ENABLEDTEAMMCP_BATCH_WINDOW_MSTEAMMCP_BIND_HOSTTEAMMCP_CLAUDE_CMDTEAMMCP_CMD_ALLOWLIST_EXTRATEAMMCP_DAEMON_DEVTEAMMCP_DEVTEAMMCP_ENVTEAMMCP_HOMEData → /home/teammcp/teammcp-data for the serviceTEAMMCP_INTERNAL_SECRETTEAMMCP_KEY"": "{agent_token}",TEAMMCP_NOW_TTL_MSTEAMMCP_PORTNo 3100 Server listening portTEAMMCP_PTY_DAEMONTEAMMCP_REGISTER_SECRETRegistration Control: Optional registration secret ()TEAMMCP_URL"": "http://localhost:3100"TEAM_IDLE_WARN_HOURSWATCHDOG_DISABLEDWECHAT_TOKEN_PATHWINDIRTool annotations
No tools have read-only/destructive annotations
Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.
All four hints declared on every tool
146/146 tools missing one or more hints — send_message (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); send_dm (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_history (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +143 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.
For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.
Tool test coverage
Only 0/146 tools referenced in tests (0%)
Write tests that reference each tool by name so every tool has at least one test.
Shell command execution
65 child_process calls — runs shell commands
Prefer library functions over shell-outs. If you must shell out, ensure all inputs are properly escaped.
Secrets stay with their owner
7 secret/sensitive values flow into network calls (TEAMMCP_KEY → dynamic, TEAMMCP_KEY → dynamic)
Audit where credentials are sent. A NOTION_TOKEN should only reach api.notion.com — never a third-party host.
Secrets not logged
1 secret value sent to console.log
Redact or omit secret values from log output.
No arbitrary install scripts
Has postinstall/preinstall script — runs arbitrary code on npm install
Remove postinstall/preinstall hooks unless they’re essential.
Production dependencies are patched
0 critical, 4 high severity in production deps — @modelcontextprotocol/sdk@1.12.1 (high), @modelcontextprotocol/sdk@1.12.1 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
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