Ariel is an MCP server that exposes AT Protocol (Bluesky) operations as tools, enabling AI assistants to read, write, and interact on Bluesky with human-in-the-loop control.
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Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
When Vitest UI server is listening, arbitrary file can be read and executed
Vitest allows Remote Code Execution when accessing a malicious website while Vitest API server is listening
@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
process.env. You'll be asked to provide them before it can run.ARIEL_DATA_DIR— No Session storage directory (default: ~/.ariel/)BLUESKY_APP_PASSWORD— Yes A Bluesky [app password](https://bsky.app/settings/app-passwords)BLUESKY_IDENTIFIER— Yes Your Bluesky handle or emailBLUESKY_SERVICE_URL— No PDS URL (default: https://bsky.social)[](https://m8ven.ai/mcp/ticktockbent-ariel-lxglyt)