mysql-mcp-server
An MCP server that provides read-only access to MySQL databases.
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dpflucas
Source: npm · also listed on ModelScope, Smithery
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Install from
The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.
Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default
MySQL2: Auth Plugin Downgrade to mysql_clear_password Leaks Plaintext Credentials
MySQL2: Unbounded zlib inflate in compressed MySQL protocol handler allows decompression-bomb DoS
MYSQL_CONNECTION_LIMITControl the maximum number of connections in the pool (default: 10)MYSQL_CONNECT_TIMEOUTAdjust the connection timeout in milliseconds (default: 10000)MYSQL_DATABASEDefault database name (optional)MYSQL_HOSTDatabase server hostnameMYSQL_IDLE_TIMEOUTConfigure how long a connection can be idle before being released (in milliseconds)MYSQL_MAX_IDLESet the maximum number of idle connections to keep in the poolMYSQL_PASSWORDDatabase password (optional, but recommended for secure connections)MYSQL_PORTDatabase server port (default: 3306)MYSQL_QUEUE_LIMITSet the maximum number of connection requests to queue (default: 0, unlimited)MYSQL_USERDatabase usernameTool 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
4/4 tools missing one or more hints — list_databases (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); list_tables (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); describe_table (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +1 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.
Tests exist
No test files found
Add tests that exercise each declared tool.
Secrets never reach shell commands
1 secret value passed to a subprocess as an argument — no shell is invoked, so there is nothing to inject into
Never pass secrets through shell commands. Use library APIs that accept credentials as arguments.
Secrets not logged
9 secret values sent to log
Redact or omit secret values from log output.
Production dependencies are patched
0 critical, 2 high severity in production deps — @modelcontextprotocol/sdk@0.6.0 (high), mysql2@3.12.0 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
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