MAL-2026-15847

    Dashboard / Malicious Package / MAL-2026-15847

    MAL-2026-15847

    Published: 3 Sept 2026Last Modified: 4 Sept 2026

    Summary: Malicious code in fieldbase-webapplication-buildtools (npm)

    Details: Source: amazon-inspector (8c30b72acbc526ba924e071ebefd3bc3a131d6dc29abaa71fa76deab2836345e) package.json declares preinstall and install lifecycle scripts that collect the installer's username (whoami), hostname, current working directory, and npm package name, base64-encode them, and send them to the hardcoded endpoint https://eoy34oyrep9j5x8.m.pipedream.net via both an HTTPS GET path and a DNS-lookup channel (nslookup against a subdomain of the same host). This fires automatically on `npm install` with no user interaction. The version number 99.99.99 and package name pattern are consistent with a dependency-confusion lure targeting an internal package name. Source: ossf-package-analysis (2429684480958b2faee9e5dc817ba4f9b5c9e00bd73052546dde0c033654e8ba) The OpenSSF Package Analysis project identified 'fieldbase-webapplication-buildtools' @ 99.99.99 (npm) as malicious. It is considered malicious because: - The package communicates with a domain associated with malicious activity. - The package executes one or more commands associated with malicious behavior.

    References: https://www.npmjs.com/package/fieldbase-webapplication-buildtools/v/99.99.99

    Affected packages

    Package

    Name: fieldbase-webapplication-buildtools

    Purl: pkg:npm/fieldbase-webapplication-buildtools

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    99.99.99