MAL-2026-5520

    Dashboard / Malicious Package / MAL-2026-5520

    MAL-2026-5520

    Published: 10 Jun 2026Last Modified: 10 Jun 2026

    Summary: Malicious code in @access-risk/browser-remedy-react (npm)

    Details: Source: amazon-inspector (0de4bc9f19feea718e091e9b0a480e9b939cdffa88109375020895c99efa489c) On `npm install`, postinstall.js executes automatically and collects host identity and environment details using `os.hostname()`, `process.cwd()`, and filesystem reads, base64-encodes the data via `Buffer.from(...).toString('base64')`, and exfiltrates it through both DNS lookups (`require('dns')`) and HTTPS requests (`require('https')`). The dual-channel base64 exfiltration shape (DNS tunneling plus HTTPS POST) combined with collection of system identifiers is the canonical install-time data-theft fingerprint and provides direct attacker benefit: any machine running `npm install` for this package leaks identifying information to an external destination automatically, before the user has reviewed any package code.

    Affected packages

    Package

    Name: @access-risk/browser-remedy-react

    Purl: pkg:npm/%40access-risk%2Fbrowser-remedy-react

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    99.1.1
    MAL-2026-5520 | CVE-DB