MAL-2026-17525

    Dashboard / Malicious Package / MAL-2026-17525

    MAL-2026-17525

    Published: 4 Oct 2026Last Modified: 4 Oct 2026

    Summary: Malicious code in tiny-css-token-parser (npm)

    Details: Source: amazon-inspector (ee63fae51fceee7c4d3c5051e191e477ca9bb8302f6fc4d3d07f5446951efa0f) Package is advertised as a CSS token parser but ships thunderboltRegistry.js which runs an IIFE on module load that collects hostname, pid, Node version, platform, and the output of `id` and `uname -r` via child_process.execSync, then exfiltrates them as DNS/HTTP subdomains under an oast.live interact.sh collector and a POST to webhook.site/0492a36c-4d7b-408a-865c-226db25987ba with a `where=internetbrands` tag. The package manifest aliases seven internal Wix Thunderbolt registry module names (thunderboltRegistry, siteAssetsRegistry, documentManagementRegistry, editorRegistry, corvidRegistry, and others) to the same recon module and exports factories under those keys, so any loader that resolves those internal names to this public package will execute the recon payload. The name/description are a cover story; the actual behavior is targeted dependency-confusion reconnaissance against Wix's internetbrands build graph.

    References: https://www.npmjs.com/package/tiny-css-token-parser/v/1.0.0

    Affected packages

    Package

    Name: tiny-css-token-parser

    Purl: pkg:npm/tiny-css-token-parser

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    1.0.0