# parse5@5.1.1 security report (npm)

- Verdict: **No issues** (risk level: safe)
- Scanned: 2026-10-06T14:23:43.000Z
- Files reviewed: 24
- Findings: no findings
- Report: https://security.togoder.click/npm/parse5@5.1.1
- Source: Togoder Security (https://security.togoder.click), AI source-code review

## Summary

Togoder Security scanned the npm package parse5@5.1.1 on Oct 6, 2026. An AI review of 24 source files produced no findings. No malicious behavior, install-time payloads, credential theft or exfiltration were identified.

## Findings

No findings.

## Files reviewed

- `lib/common/doctype.js` (safe): Cleared by Jev triage; no further analysis needed
- `lib/common/error-codes.js` (safe): Cleared by Jev triage; no further analysis needed
- `lib/common/foreign-content.js` (safe): Cleared by Jev triage; no further analysis needed
- `lib/common/html.js` (safe): Cleared by Jev triage; no further analysis needed
- `lib/common/unicode.js` (safe): Cleared by Jev triage; no further analysis needed
- `lib/extensions/error-reporting/mixin-base.js` (safe): Cleared by Jev triage; no further analysis needed
- `lib/extensions/error-reporting/parser-mixin.js` (safe): Cleared by Jev triage; no further analysis needed
- `lib/extensions/error-reporting/preprocessor-mixin.js` (safe): Cleared by Jev triage; no further analysis needed
- `lib/extensions/error-reporting/tokenizer-mixin.js` (safe): Cleared by Jev triage; no further analysis needed
- `lib/extensions/location-info/open-element-stack-mixin.js` (safe): Cleared by Jev triage; no further analysis needed
- `lib/extensions/location-info/parser-mixin.js` (safe): Cleared by Jev triage; no further analysis needed
- `lib/extensions/location-info/tokenizer-mixin.js` (safe): Cleared by Jev triage; no further analysis needed
- `lib/extensions/position-tracking/preprocessor-mixin.js` (safe): Cleared by Jev triage; no further analysis needed
- `lib/index.js` (safe): Cleared by Jev triage; no further analysis needed
- `lib/parser/formatting-element-list.js` (safe): Cleared by Jev triage; no further analysis needed
- `lib/parser/index.js` (safe): No malicious patterns detected
- `lib/parser/open-element-stack.js` (safe): Cleared by Jev triage; no further analysis needed
- `lib/serializer/index.js` (safe): Cleared by Jev triage; no further analysis needed
- `lib/tokenizer/index.js` (safe): Cleared by Jev triage; no further analysis needed
- `lib/tokenizer/named-entity-data.js` (safe): This file is a static Uint16Array containing auto-generated radix tree data for HTML named entity reference parsing, with no executable code, network access, file system operations, or other malicious patterns.
- `lib/tokenizer/preprocessor.js` (safe): Cleared by Jev triage; no further analysis needed
- `lib/tree-adapters/default.js` (safe): Cleared by Jev triage; no further analysis needed
- `lib/utils/merge-options.js` (safe): Cleared by Jev triage; no further analysis needed
- `lib/utils/mixin.js` (safe): No malicious patterns detected

## Version ranges

None of the 3 scanned versions of parse5 are flagged high or critical. The latest scanned version, 8.0.1, is clean. Only versions we have scanned are listed; unscanned versions between them are not covered.

- 8.0.1 (`8.0.1`): clean
- 7.3.0 (`7.3.0`): not scanned
- 5.1.1 – 6.0.1 (`>=5.1.1 <=6.0.1`): clean

## Scanned versions

- [8.0.1](https://security.togoder.click/npm/parse5@8.0.1): safe, 2026-10-06T14:17:37.000Z
- [6.0.1](https://security.togoder.click/npm/parse5@6.0.1): safe, 2026-10-06T14:23:44.000Z
- [5.1.1](https://security.togoder.click/npm/parse5@5.1.1): safe, 2026-10-06T14:23:43.000Z

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