# @metamask/superstruct@3.4.1 security report (npm)

- Verdict: **No issues** (risk level: safe)
- Scanned: 2026-10-04T21:27:26.000Z
- Files reviewed: 18
- Findings: no findings
- Report: https://security.togoder.click/npm/@metamask/superstruct
- Source: Togoder Security (https://security.togoder.click), AI source-code review

## Summary

Togoder Security scanned the npm package @metamask/superstruct@3.4.1 on Oct 4, 2026. An AI review of 18 source files produced no findings. No malicious behavior, install-time payloads, credential theft or exfiltration were identified.

## Findings

No findings.

## Files reviewed

- `dist/error.cjs` (safe): No malicious patterns detected in the provided error handling code.
- `dist/error.mjs` (safe): Cleared by Jev triage; no further analysis needed
- `dist/index.cjs` (safe): No malicious patterns detected; the code is a standard TypeScript/CommonJS re-export barrel with only local module imports.
- `dist/index.mjs` (safe): The file only re-exports modules from local relative paths with no executable or suspicious code.
- `dist/struct.cjs` (safe): No malicious patterns detected; the code is a standard validation library with no data exfiltration, credential harvesting, dynamic code execution, or other suspicious behavior.
- `dist/struct.mjs` (safe): Cleared by Jev triage; no further analysis needed
- `dist/structs/coercions.cjs` (safe): Cleared by Jev triage; no further analysis needed
- `dist/structs/coercions.mjs` (safe): Cleared by Jev triage; no further analysis needed
- `dist/structs/refinements.cjs` (safe): No malicious patterns detected; the code implements struct validation refinements without any network, filesystem, process execution, or obfuscation concerns.
- `dist/structs/refinements.mjs` (safe): Cleared by Jev triage; no further analysis needed
- `dist/structs/sensitive.cjs` (safe): Cleared by Jev triage; no further analysis needed
- `dist/structs/sensitive.mjs` (safe): Cleared by Jev triage; no further analysis needed
- `dist/structs/types.cjs` (safe): No malicious patterns detected; this is a legitimate type validation library (Superstruct) with no network, filesystem, process execution, or obfuscated code.
- `dist/structs/types.mjs` (safe): Cleared by Jev triage; no further analysis needed
- `dist/structs/utilities.cjs` (safe): No malicious patterns detected; the code contains only legitimate struct utility functions with no network, filesystem, process, or obfuscated behavior.
- `dist/structs/utilities.mjs` (safe): Cleared by Jev triage; no further analysis needed
- `dist/utils.cjs` (safe): No malicious patterns detected; the code is a straightforward validation utility library with no network, filesystem, process, or dynamic execution behavior.
- `dist/utils.mjs` (safe): No malicious patterns detected; the code implements pure validation utility functions with no network, filesystem, process, or dynamic execution behavior.

## Version ranges

None of the 2 scanned versions of @metamask/superstruct are flagged high or critical. The latest scanned version, 3.4.1, is clean. Only versions we have scanned are listed; unscanned versions between them are not covered.

- 3.2.1 – 3.4.1 (`>=3.2.1 <=3.4.1`): clean

## Scanned versions

- [3.4.1](https://security.togoder.click/npm/@metamask/superstruct@3.4.1): safe, 2026-10-04T21:27:26.000Z
- [3.2.1](https://security.togoder.click/npm/@metamask/superstruct@3.2.1): safe, 2026-10-04T16:08:45.000Z

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