# @metamask/utils@12.0.0 security report (npm)

- Verdict: **No issues** (risk level: safe)
- Scanned: 2026-10-04T21:27:24.000Z
- Files reviewed: 27
- Findings: no findings
- Report: https://security.togoder.click/npm/@metamask/utils@12.0.0
- Source: Togoder Security (https://security.togoder.click), AI source-code review

## Summary

Togoder Security scanned the npm package @metamask/utils@12.0.0 on Oct 4, 2026. An AI review of 27 source files produced no findings. No malicious behavior, install-time payloads, credential theft or exfiltration were identified.

## Findings

No findings.

## Files reviewed

- `dist/assert.js` (safe): Cleared by Jev triage; no further analysis needed
- `dist/base64.js` (safe): Cleared by Jev triage; no further analysis needed
- `dist/bytes.js` (safe): No malicious patterns detected; this is a legitimate byte/hex/base64 conversion utility module with no network, filesystem, process, or dynamic code execution behavior.
- `dist/caip-types.js` (safe): No malicious patterns detected; the file contains only CAIP identifier regex validators and pure utility functions with no network, filesystem, process, or dynamic code execution.
- `dist/checksum.js` (safe): No malicious patterns detected
- `dist/coercers.js` (safe): Cleared by Jev triage; no further analysis needed
- `dist/collections.js` (safe): Cleared by Jev triage; no further analysis needed
- `dist/encryption-types.js` (safe): This file is a TypeScript-generated empty export with a source map reference and contains no executable or malicious code.
- `dist/errors.js` (safe): Cleared by Jev triage; no further analysis needed
- `dist/fs.js` (safe): The code is a standard file system utility module (read/write/remove/temp sandbox) with no network access, credential harvesting, obfuscation, dynamic code execution, or process spawning beyond normal Node.js filesystem operations.
- `dist/hashing.js` (safe): Cleared by Jev triage; no further analysis needed
- `dist/hex.js` (safe): No malicious patterns detected; the file contains standard Ethereum hex/address validation and checksum utilities with no exfiltration, dynamic execution, or process spawning.
- `dist/index.js` (safe): No malicious patterns detected in the re-export barrel file; all exports reference local modules and no execution, network, or exfiltration logic is present.
- `dist/json.js` (safe): No malicious patterns detected; the code is a legitimate JSON/JSON-RPC validation utility from MetaMask.
- `dist/keyring.js` (safe): The file contains only an empty export statement and a source map reference, with no executable or malicious code.
- `dist/logging.js` (safe): Cleared by Jev triage; no further analysis needed
- `dist/misc.js` (safe): Cleared by Jev triage; no further analysis needed
- `dist/mnemonic.js` (safe): The code performs standard BIP-39 mnemonic conversion using the official MetaMask scure-bip39 wordlist, with no network, filesystem, process, or obfuscated activity detected.
- `dist/node.js` (safe): No malicious patterns detected; the file only re-exports modules from local files.
- `dist/number.js` (safe): Cleared by Jev triage; no further analysis needed
- `dist/opaque.js` (safe): No malicious patterns detected
- `dist/promise.js` (safe): Cleared by Jev triage; no further analysis needed
- `dist/superstruct.js` (safe): Cleared by Jev triage; no further analysis needed
- `dist/time.js` (safe): Cleared by Jev triage; no further analysis needed
- `dist/transaction-types.js` (safe): No malicious patterns detected
- `dist/unitsConversion.js` (safe): Cleared by Jev triage; no further analysis needed
- `dist/versions.js` (safe): No malicious patterns detected

## Version ranges

None of the 5 scanned versions of @metamask/utils are flagged high or critical. The latest scanned version, 12.0.0, is clean. Only versions we have scanned are listed; unscanned versions between them are not covered.

- 12.0.0 (`12.0.0`): clean
- 11.11.0 – 11.12.1 (`>=11.11.0 <=11.12.1`): not scanned
- 8.5.0 – 11.8.1 (`>=8.5.0 <=11.8.1`): medium (file system manipulation)
- 5.0.2 (`5.0.2`): clean

## Scanned versions

- [12.0.0](https://security.togoder.click/npm/@metamask/utils@12.0.0): safe, 2026-10-04T21:27:24.000Z
- [11.8.1](https://security.togoder.click/npm/@metamask/utils@11.8.1): medium, 2026-10-04T16:08:47.000Z
- [9.3.0](https://security.togoder.click/npm/@metamask/utils@9.3.0): medium, 2026-10-04T16:06:58.000Z
- [8.5.0](https://security.togoder.click/npm/@metamask/utils@8.5.0): medium, 2026-10-04T16:06:54.000Z
- [5.0.2](https://security.togoder.click/npm/@metamask/utils@5.0.2): safe, 2026-10-04T16:07:01.000Z

AI analysis is guidance, not a guarantee. Methodology: https://security.togoder.click/methodology