Summary
snowflake-readonly-mcp v0.1.19 was classified as CRITICAL RISK with a risk score of 155. Sigil detected 5 findings across 25 files, covering phases including install hooks, obfuscation. Review the findings below before installing this package.
v0.1.19
24 March 2026, 21:55 UTC
by Sigil Bot
Risk Score
155
Findings
5
Files Scanned
25
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
package/README.md:80
Just configure your MCP client using the examples in the [Configuration](#configuration) section below.
Requires [uv](https://docs.astral.sh/uv/getting-started/installation/) (`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
package/bin/install.js:41
console.error('\nPlease install one of the following:');
console.error(' 1. uv (recommended): curl -LsSf https://astral.sh/uv/install.sh | sh');
console.error(' 2. Python 3.12+: https://www.python.org/downloads/');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
package/bin/snowflake-mcp.js:63
console.error('Error: Virtual environment not found and uv is not installed.');
console.error('Please install uv: curl -LsSf https://astral.sh/uv/install.sh | sh');
console.error('Or manually set up a Python virtual environment in:', packageDir);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-npm-postinstall
CRITICALnpm lifecycle script — runs automatically on install
package/package.json:34
"scripts": {
"postinstall": "node bin/install.js"
}Why was this flagged?
npm lifecycle scripts like postinstall run automatically during package installation with no user interaction required. This is the #1 attack vector for malicious npm packages — attackers embed data theft or backdoor installation in these hooks. Rated CRITICAL because code executes before the developer can review it.
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