sebastianall1977/gmail-mcp
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Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
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sebastianall1977
Source: Official · also listed on Glama
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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.
@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
express vulnerable to XSS via response.redirect()
@babel/core: Arbitrary File Read via sourceMappingURL Comment
AUTH_SERVER_PORTPort for the temporary OAuth authentication server No 3000CLIENT_ID6. (Optional) For remote server installation (ex. using Smithery CLI), note the and CLIENT_SECRET from this file.CLIENT_SECRET6. (Optional) For remote server installation (ex. using Smithery CLI), note the CLIENT_ID and from this file.GOOGLE_CLIENT_IDGOOGLE_CLIENT_SECRETMCP_CONFIG_DIRGMAIL_CREDENTIALS_PATH Path to the user credentials file No /credentials.jsonOAUTH_REDIRECT_URIREFRESH_TOKEN4. (Optional) For remote server installation, note the file path mentioned in the success message (~/.gmail-mcp/credentials.json by default). The user's will be found here.TELEMETRY_ENABLEDEnable telemetry No truePORTTool 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
1/1 tools missing one or more hints — list_messages (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint). 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 0/1 tools referenced in tests (0%)
Write tests that reference each tool by name so every tool has at least one test.
Production dependencies are patched
0 critical, 3 high severity in production deps — @modelcontextprotocol/sdk@1.16.0 (high), @modelcontextprotocol/sdk@1.16.0 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
Dependency freshness
2/11 production deps stale: querystring@2022-06-25 (4y), node-fetch@2023-11-30 (2.5y)
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