Summary
Togoder Security scanned the npm package @metamask/utils@5.0.2 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. The reviewer saw nothing malicious or risky in this version.
Files reviewed
| File | Verdict | What the reviewer saw |
|---|---|---|
| dist/assert.js | safe | No malicious patterns detected |
| dist/base64.js | safe | No malicious patterns detected |
| dist/bytes.js | safe | No malicious patterns detected |
| dist/checksum.js | safe | No malicious patterns detected |
| dist/coercers.js | safe | No malicious patterns detected |
| dist/collections.js | safe | No malicious patterns detected; the code implements immutable FrozenMap and FrozenSet classes with no network, file system, process execution, or environment access. |
| dist/encryption-types.js | safe | No malicious patterns detected |
| dist/hex.js | safe | No malicious patterns detected |
| dist/index.js | safe | No malicious patterns detected |
| dist/json.js | safe | The code is a legitimate JSON-RPC validation utility using the superstruct library, with no malicious patterns such as data exfiltration, credential harvesting, obfuscated payloads, process spawning, or suspicious network activity. |
| dist/keyring.js | safe | No malicious patterns detected |
| dist/logging.js | safe | No malicious patterns detected |
| dist/misc.js | safe | No malicious patterns detected |
| dist/number.js | safe | No malicious patterns detected |
| dist/opaque.js | safe | No malicious patterns detected |
| dist/time.js | safe | No malicious patterns detected |
| dist/transaction-types.js | safe | No malicious patterns detected |
| dist/versions.js | safe | No malicious patterns detected; the file only provides SemVer validation utilities using semver and superstruct libraries. |
Affected 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.
| Versions | Verdict | Count | Range | Top findings |
|---|---|---|---|---|
| 12.0.0 | No issues | 1 | 12.0.0 | |
| 11.11.0 – 11.12.1 | Not scanned | 2 | >=11.11.0 <=11.12.1 | |
| 8.5.0 – 11.8.1 | Needs review | 3 | >=8.5.0 <=11.8.1 | file system manipulation |
| 5.0.2 | No issues | 1 | 5.0.2 |
Full list, including published versions not scanned yet: version ranges API.
Scanned versions of @metamask/utils
Frequently asked questions
Is @metamask/utils safe to use?
Our AI source review of @metamask/utils@5.0.2 found no malicious code: no install-time payloads, credential theft, exfiltration, obfuscated loaders or backdoors.
Does @metamask/utils contain malware?
No malware was identified in @metamask/utils@5.0.2 when Togoder Security scanned it on Oct 4, 2026. A new version can still introduce malicious code, so scan the exact versions in your lockfile.
How was @metamask/utils checked?
Togoder Security downloaded the published npm package and had an AI model read its 18 source files, looking for install scripts, credential access, network exfiltration, obfuscation, backdoors and crypto-wallet theft. The results are cached by file hash and shown here.
How do I scan @metamask/utils together with the rest of my dependencies?
Upload your lockfile at https://security.togoder.click/scan or call the API documented at https://security.togoder.click/api-docs. Files that have already been scanned, like the ones in @metamask/utils@5.0.2, cost nothing.