mcp-sheet-filler (popstas/mcp-sheet-filler) is an MCP server listed on the M8ven Trust Index. M8ven has not graded it yet. No publisher has claimed this listing.

Back to MCP Trust IndexM8ven
C
Caution
74/100

mcp-sheet-filler

MCP server for storing and safely auto-filling tabular data. Enables AI agents to read objects, identify empty fields, collect values, and write them back without overwriting existing data.

→ popstas/mcp-sheet-filler· listed on glama

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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Who stands behind it

popstas

Source: Glama

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Glamanot scored here

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.

// key findings
🚨
Secret credentials may flow to a network call
1 flow detected: AUTH_DB_PATH. We can’t prove the destination matches the brand the credential belongs to.
🚨
Known vulnerabilities in dependencies: 1 critical, 1 high
Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.
🔐
You'll be asked for 2 credentials: GOOGLE_OAUTH_CLIENT_SECRET, GOOGLE_SERVICE_ACCOUNT_KEY
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// known CVEs in dependencies1 critical1 high

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

criticalvitest@4.0.17GHSA-5xrq-8626-4rwp

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

high@modelcontextprotocol/sdk@1.25.3GHSA-345p-7cg4-v4c7

@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse

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.
configAUTH_DB_PATH
configGOOGLE_OAUTH_CLIENT_ID
🔐 secretGOOGLE_OAUTH_CLIENT_SECRET
configGOOGLE_OAUTH_TOKEN_PATH
🔐 secretGOOGLE_SERVICE_ACCOUNT_KEYService account JSON (string or file path) —
configGOOGLE_SHEET_IDGoogle Sheet ID —
configHEALTH_DIR
configHOST
configINSTANCE_SLOT
configLOG_MASK_PRIVATE
configOBJECT_KEY_FIELDname
configRESOURCE_URL
configSHEET_TAB_DATAdata
configSHEET_TAB_FIELDSfields
configTRANSPORT
Deployment configuration, supplied by whoever hosts the server. Users are not asked for these.
deployPORT
// quality suggestions

Secrets stay with their owner

1 secret sent to a request target we could not resolve (AUTH_DB_PATH → dynamic) — often a configured endpoint, not necessarily third-party

Audit where credentials are sent. A NOTION_TOKEN should only reach api.notion.com — never a third-party host.

Secrets not logged

6 secret values sent to log

Redact or omit secret values from log output.

Production dependencies are patched

0 critical, 1 high severity in production deps — @modelcontextprotocol/sdk@1.25.3 (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.

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 4 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: 244c0e168e7f4ee0dc2ca9d1b23caf8cbb85a5f6
code hash: f5171d1702f6267b8a41cbd4b6d4d9a55a3d8681f5b43d4f0f88eed94e961153
view raw JSON →
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