MAL-2026-6291

    Dashboard / Malicious Package / MAL-2026-6291

    MAL-2026-6291

    Published: 23 Jun 2026Last Modified: 23 Jun 2026

    Summary: Malicious code in @outmarket/ui (npm)

    Details: Source: amazon-inspector (7241a2e167db383267fa82ce9660a44f7bcca4b6d4f11bb7ca85eaa6b432a47e) package.json declares a postinstall script that runs automatically on `npm install` and performs `require('https').get(...)` to a Burp Collaborator subdomain (`7rzjsf29azci2qjsm6kxt23ag1mtanyc.oastify.com`), passing `os.hostname()` and `os.userInfo().username` as query parameters. Any developer or build system installing this package leaks host identity to an external attacker-controlled OAST endpoint. The package's own description (`PENTEST-PoC: Dependency confusion - SecurifyAI engagement 2026-06-23`) and the version `9.9.9` published under the `@outmarket` scope indicate the package is designed to win resolution against an internal private package of the same name and harvest beacons from anyone in the targeted organization who installs it.

    References: https://www.npmjs.com/package/@outmarket/ui/v/9.9.9

    Affected packages

    Package

    Name: @outmarket/ui

    Purl: pkg:npm/%40outmarket%2Fui

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    9.9.9
    MAL-2026-6291 | CVE-DB