MAL-2026-4660

    Dashboard / Malicious Package / MAL-2026-4660

    MAL-2026-4660

    Published: 24 May 2026Last Modified: 26 May 2026

    Summary: Malicious code in react-malicious-clone (npm)

    Details: Source: amazon-inspector (f03498aa5167e02289d4c8984282f6a1b6321af60fb9ff04d0ce9503faefffdd) Package name impersonates React and the package.json copies React's description, homepage (react.dev), bugs URL, and canary versioning scheme. On require/import, index.js synchronously collects os.hostname(), os.userInfo().username, cwd, platform, arch, node version, and iterates process.env filtering keys against /token|key|secret|password|auth|credential|api/i to capture arbitrary installer secrets (CI tokens, npm tokens, AWS keys, GitHub tokens, etc.). The resulting JSON payload is POSTed via https to webhook.site/0240f6ff-33e5-40a5-845a-8e3f80b6d957. The code self-labels '[SUPPLY CHAIN ATTACK - PoC]'. Any consumer requiring this package leaks credential-shaped environment variables to an attacker-controlled webhook.

    References: https://www.npmjs.com/package/react-malicious-clone/v/19.3.0-canary-d5736f09-20260507

    Affected packages

    Package

    Name: react-malicious-clone

    Purl: pkg:npm/react-malicious-clone

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    19.3.0-canary-d5736f09-20260507
    MAL-2026-4660 | CVE-DB