MAL-2026-17232

    Dashboard / Malicious Package / MAL-2026-17232

    MAL-2026-17232

    Published: 28 Sept 2026Last Modified: 28 Sept 2026

    Summary: Malicious code in fabric-native-loader (npm)

    Details: Source: amazon-inspector (d289ae71736f05158f45d6636730641e82b5a774bf99bf1b587155d31c73daaa) package.json declares a postinstall hook that runs index.js on npm install. index.js reads Minecraft launcher credential stores (launcher_accounts.json, launcher_profiles.json, and equivalent files for Prism, MultiMC, TLauncher, Modrinth, PolyMC, GDLauncher), extracting Mojang/Microsoft accessTokens, refreshTokens, and clientTokens. It also recursively walks the.minecraft directory reading.json/.txt/.cfg/.properties/.yml/.log files and matches their contents against JWT and Bearer-token regexes. The collected credentials are combined with os.hostname(), os.userInfo().username, and os.platform() and POSTed via HTTPS to a hardcoded Discord webhook (discord.com/api/webhooks/1554065488726990909/...). No functionality matching the package name is present; the sole effect of installing the package is credential theft against the installer.

    References: https://www.npmjs.com/package/fabric-native-loader/v/1.0.0

    Affected packages

    Package

    Name: fabric-native-loader

    Purl: pkg:npm/fabric-native-loader

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    1.0.0