# react-is@19.3.0 security report (npm)

- Verdict: **No issues** (risk level: safe)
- Scanned: 2026-10-06T14:23:50.000Z
- Files reviewed: 3
- Findings: no findings
- Report: https://security.togoder.click/npm/react-is
- Source: Togoder Security (https://security.togoder.click), AI source-code review

## Summary

Togoder Security scanned the npm package react-is@19.3.0 on Oct 6, 2026. An AI review of 3 source files produced no findings. No malicious behavior, install-time payloads, credential theft or exfiltration were identified.

## Findings

No findings.

## Files reviewed

- `cjs/react-is.development.js` (safe): No malicious patterns detected
- `cjs/react-is.production.js` (safe): This is the legitimate React is.production.js module from the official react-is package, containing only type-checking utilities for React elements with no malicious patterns.
- `index.js` (safe): No malicious patterns detected

## Version ranges

None of the 3 scanned versions of react-is are flagged high or critical. The latest scanned version, 19.3.0, is clean. Only versions we have scanned are listed; unscanned versions between them are not covered.

- 19.3.0 (`19.3.0`): clean
- 18.3.1 – 19.2.8 (`>=18.3.1 <=19.2.8`): not scanned
- 16.13.1 – 17.0.2 (`>=16.13.1 <=17.0.2`): clean

## Scanned versions

- [19.3.0](https://security.togoder.click/npm/react-is@19.3.0): safe, 2026-10-06T14:23:50.000Z
- [17.0.2](https://security.togoder.click/npm/react-is@17.0.2): safe, 2026-10-06T14:12:49.000Z
- [16.13.1](https://security.togoder.click/npm/react-is@16.13.1): safe, 2026-10-06T14:23:48.000Z

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