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memento-mcp-server

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Summary

memento-mcp-server v1.22.0 was classified as CRITICAL RISK with a risk score of 3923. Sigil detected 253 findings across 1216 files, covering phases including install hooks, code patterns, network exfiltration. Review the findings below before installing this package.

CRITICAL RISK(3923)

v1.22.0

26 March 2026, 15:49 UTC

by Sigil Bot

Risk Score

3923

Findings

253

Files Scanned

1216

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

HIGH

Makefile/script pipes remote content to shell

package/INSTALL.en.md:14

# Run automatic installation script
curl -sSL https://raw.githubusercontent.com/jee1/memento/main/install.sh | bash
```
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

HIGH

Makefile/script pipes remote content to shell

package/INSTALL.en.md:66

```bash
curl -sSL https://raw.githubusercontent.com/jee1/memento/main/install.sh | bash
```
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

HIGH

Makefile/script pipes remote content to shell

package/INSTALL.en.md:323

# Install Node.js with nvm (Linux/macOS)
curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.0/install.sh | bash
nvm install 20
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

HIGH

Makefile/script pipes remote content to shell

package/INSTALL.md:14

# 자동 설치 스크립트 실행
curl -sSL https://raw.githubusercontent.com/jee1/memento/main/install.sh | bash
```
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

HIGH

Makefile/script pipes remote content to shell

package/INSTALL.md:66

```bash
curl -sSL https://raw.githubusercontent.com/jee1/memento/main/install.sh | bash
```
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

HIGH

Makefile/script pipes remote content to shell

package/INSTALL.md:365

# nvm으로 Node.js 설치 (Linux/macOS)
curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.0/install.sh | bash
nvm install 20
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

HIGH

Makefile/script pipes remote content to shell

package/README.en.md:55

# Run automatic installation script
curl -sSL https://raw.githubusercontent.com/jee1/memento/main/install.sh | bash
```
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

HIGH

Makefile/script pipes remote content to shell

package/README.md:75

# 자동 설치 스크립트 실행
curl -sSL https://raw.githubusercontent.com/jee1/memento/main/install.sh | bash
```
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

CRITICAL

npm lifecycle script — runs automatically on install

package/package.json:83

    "setup": "node scripts/auto-setup.js",
    "postinstall": "node scripts/auto-setup.js",
    "rebuild-native": "npm rebuild better-sqlite3 sqlite-vec",
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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