Summary
mariadb-RupeshBiswas/google-sheets-mcp v2026-03-22 was classified as CRITICAL RISK with a risk score of 121. Sigil detected 10 findings across 44 files, covering phases including provenance, network exfiltration, credential access, install hooks, code patterns, obfuscation. Review the findings below before installing this package.
Package description: Read-only Google Sheets MCP server with ADC auth for Cascade, Cursor, Copilot, Claude, and other MCP clients
v2026-03-22
22 March 2026, 23:58 UTC
by Sigil Bot
Risk Score
121
Findings
10
Files Scanned
44
Provenance
Findings by Phase
Phase Ordering
Phases are ordered by criticality, with the most dangerous at the top. Click any phase header to expand or collapse its findings. Critical phases are expanded by default.
install-makefile-curl
HIGHMakefile/script pipes remote content to shell
repo/README.md:41
brew install uv # macOS
# or: curl -LsSf https://astral.sh/uv/install.sh | sh
Why was this flagged?
A script or Makefile pipes content from a remote URL directly into a shell (curl | sh or wget | bash). This is inherently dangerous because the remote content can change at any time, and the command runs with the current user's permissions. Rated HIGH because it requires manual execution (unlike install hooks) but still executes arbitrary remote code.
install-makefile-curl
HIGHMakefile/script pipes remote content to shell
repo/docs/QUICKSTART.md:8
| Python 3.11+ | `brew install python` or [python.org](https://python.org) |
| uv | `brew install uv` or `curl -LsSf https://astral.sh/uv/install.sh \| sh` |
| Google Cloud SDK | `brew install google-cloud-sdk` or [cloud.google.com/sdk](https://cloud.google.com/sdk/docs/install) |Why was this flagged?
A script or Makefile pipes content from a remote URL directly into a shell (curl | sh or wget | bash). This is inherently dangerous because the remote content can change at any time, and the command runs with the current user's permissions. Rated HIGH because it requires manual execution (unlike install hooks) but still executes arbitrary remote code.
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Markdown
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