opengrok-mcp-server (IcyHot09/opengrok-mcp-server) is an MCP server listed on the M8ven Trust Index. It scores 52 out of 100, grade D. It declares 25 tools. No publisher has claimed this listing.
MCP server bridging OpenGrok search engine with AI for instant context across massive codebases
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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IcyHot09
Source: npm · also listed on Glama
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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
undici vulnerable to cross-origin request routing via SOCKS5 proxy pool reuse
undici vulnerable to TLS certificate validation bypass via dropped requestTls in SOCKS5 ProxyAgent
undici WebSocket client vulnerable to denial of service via fragment count bypass
JS-YAML: Quadratic-complexity DoS in merge key handling via repeated aliases
OPENGROK_ALLOWED_ORIGINScomma-separated origins CORS allowlist (replaces wildcard CORS)OPENGROK_AUTH_SERVERScomma-separated URLs Trusted authorization server URIsOPENGROK_BASE_URLopengrok-mcp status Health check: validates connectivity and detects installed MCP clients. Reads config from ~/.claude.json, ~/.copilot/mcp-config.json, or Codex TOML when is not in envOPENGROK_CONTEXT_BUDGETstandard (default) / minimal / generous Response size tier: 8 KB / 4 KB / 16 KBOPENGROK_JWKS_URIURL JWKS endpoint for JWT validation (OAuth 2.1 resource server mode)OPENGROK_LOG_LEVELdebug / info (default) Verbose structured logging to stderrOPENGROK_MAX_INLINE_LINESOPENGROK_MAX_RESPONSE_BYTESOPENGROK_PASSWORDstring Authentication password (prefer OS keychain via npx opengrok-mcp-server setup)OPENGROK_PASSWORD_FILEOPENGROK_RESOURCE_URIURL This server's resource URI, advertised in RFC 9728 metadataOPENGROK_RESPONSE_FORMAT_OVERRIDEtsv / toon / yaml / text / markdown Force a response format globally for all toolsOPENGROK_SCOPE_MAPscope:role,... Map JWT scopes to RBAC roles (e.g., read:readonly,admin:admin)OPENGROK_SEARCH_AND_READ_CAPOPENGROK_STRICT_OAUTHtrue / false Reject requests without a valid JWT when OPENGROK_JWKS_URI is setOPENGROK_USERNAMEstring Authentication username (optional — leave unset for anonymous access)VSCODE_IPC_HOOK_CLIXDG_CONFIG_HOMETool annotations
3/25 tools have annotations
Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.
All four hints declared on every tool
22/25 tools missing one or more hints — opengrok_api (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); opengrok_execute (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); opengrok_search_code (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +19 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 inputs are validated
Only 3/25 tool handlers declare input schemas (12%)
Declare an inputSchema with zod/joi/yup on every tool definition.
Tool test coverage
10/25 tools referenced in tests (40%)
Write tests that reference each tool by name so every tool has at least one test.
Shell command execution
17 child_process calls — runs shell commands
Prefer library functions over shell-outs. If you must shell out, ensure all inputs are properly escaped.
Production dependencies are patched
0 critical, 3 high severity in production deps — undici@7.24.2 (high), undici@7.24.2 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
Dev dependencies
1 critical/high in dev-only deps (does not ship to users)
Upgrade dev dependencies when convenient.
Dependency freshness
2/15 production deps stale: he@2022-07-06 (4y), @iarna/toml@2023-07-15 (3y)
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