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.

D
Caution
52/100
1 month ago

opengrok-mcp-server

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.

How we verified

Code Verified⚡ Live Monitored: not connected

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Who stands behind it

IcyHot09

Source: npm · also listed on Glama

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// key findings
🚨
Known vulnerabilities in dependencies: 1 critical, 3 high
Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.
🔐
You'll be asked for 1 credential: OPENGROK_PASSWORD
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// known CVEs in dependencies1 critical3 high5 low

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

criticalvitest@3.1.4GHSA-5xrq-8626-4rwp

When Vitest UI server is listening, arbitrary file can be read and executed

highundici@7.24.2GHSA-hm92-r4w5-c3mj

undici vulnerable to cross-origin request routing via SOCKS5 proxy pool reuse

highundici@7.24.2GHSA-vmh5-mc38-953g

undici vulnerable to TLS certificate validation bypass via dropped requestTls in SOCKS5 ProxyAgent

highundici@7.24.2GHSA-vxpw-j846-p89q

undici WebSocket client vulnerable to denial of service via fragment count bypass

lowjs-yaml@4.1.1GHSA-h67p-54hq-rp68

JS-YAML: Quadratic-complexity DoS in merge key handling via repeated aliases

Depend on this server? Get alerted when its CVEs change.Watch this server free →
// environment variables
To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.
configOPENGROK_ALLOWED_ORIGINScomma-separated origins CORS allowlist (replaces wildcard CORS)
configOPENGROK_AUTH_SERVERScomma-separated URLs Trusted authorization server URIs
configOPENGROK_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 env
configOPENGROK_CONTEXT_BUDGETstandard (default) / minimal / generous Response size tier: 8 KB / 4 KB / 16 KB
configOPENGROK_JWKS_URIURL JWKS endpoint for JWT validation (OAuth 2.1 resource server mode)
configOPENGROK_LOG_LEVELdebug / info (default) Verbose structured logging to stderr
configOPENGROK_MAX_INLINE_LINES
configOPENGROK_MAX_RESPONSE_BYTES
🔐 secretOPENGROK_PASSWORDstring Authentication password (prefer OS keychain via npx opengrok-mcp-server setup)
configOPENGROK_PASSWORD_FILE
configOPENGROK_RESOURCE_URIURL This server's resource URI, advertised in RFC 9728 metadata
configOPENGROK_RESPONSE_FORMAT_OVERRIDEtsv / toon / yaml / text / markdown Force a response format globally for all tools
configOPENGROK_SCOPE_MAPscope:role,... Map JWT scopes to RBAC roles (e.g., read:readonly,admin:admin)
configOPENGROK_SEARCH_AND_READ_CAP
configOPENGROK_STRICT_OAUTHtrue / false Reject requests without a valid JWT when OPENGROK_JWKS_URI is set
configOPENGROK_USERNAMEstring Authentication username (optional — leave unset for anonymous access)
configVSCODE_IPC_HOOK_CLI
configXDG_CONFIG_HOME
// quality suggestions

Tool 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)

Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.

// full audit trail
The findings above are the summary. The full trail, every check we ran, each deduction, the network hosts observed and the dependency advisories, goes to verified publishers, along with an alert whenever a new one lands. Verified publishers can also review each finding and dispute it in one click. Publisher corrections have sharpened several of our checks this month, because the maintainer knows the codebase better than any scanner.
// improvement guidance — verified publishers only
We have 7 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
// embed badge in your README
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commit: f216f521f74550d5dfb5410823ebb76ae5ad4364
code hash: c5baeab4f4f8381685293b6f82e1f5777fa88ccbabb845430943b71e0556d1e2
verified: 7/20/2026, 9:47:20 AM
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