---
id: "MAL-2026-19227"
page: "https://infrastack.ai/live/MAL-2026-19227"
kind: "package"
aliases: ["MAL-2026-19227"]
title: "Malicious code in r17d-sec-research-marker (npm)"
severity: "critical"
cvss: null
epss: null
exploited: false
status: "open"
category: "package"
products: [{"name": "r17d-sec-research-marker", "fixed": [], "affected": "= 1.0.0", "ecosystem": "npm"}]
ecosystems: ["npm"]
tags: ["malicious", "package"]
not_affected_if: []
published_at: "2026-11-13T03:58:29+00:00"
first_seen_at: "2026-11-13T05:11:56+00:00"
updated_at: "2026-11-13T05:14:00+00:00"
sources: [{"source": "osv-malicious", "url": "https://osv.dev/vulnerability/MAL-2026-19227", "first_seen_at": "2026-11-13T05:11:56+00:00"}]
exploit_sources: []
---

# Malicious code in r17d-sec-research-marker (npm)

Link for people: https://infrastack.ai/live/MAL-2026-19227 (this .md is for agents)

## Affected

- npm:r17d-sec-research-marker affected = 1.0.0 fixed no fixed version listed

## Timeline

- 2026-11-13T05:11:56+00:00 osv-malicious https://osv.dev/vulnerability/MAL-2026-19227

## From the sources

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_-= Per source details. Do not edit below this line.=-_

## Source: amazon-inspector (0dbf3def098b1620e001e0831b405dd03ec20787a88a28892163cdfbe2eadbee)
On `npm install`, the package's postinstall script (collect.js) runs shell listings of the home directory and current working directory, probes for the presence of installer credential/config files (~/.npmrc, ~/.gitconfig, ~/.config/gh, ~/.novus), enumerates all process.env variable names, and POSTs the collected JSON to a hardcoded anonymous inspection endpoint at webhook.site/f18b2445-73d1-478a-9d3f-1cb21a407c61. The host reconnaissance includes the output of `whoami`, OS/kernel info, home-directory listing, dotfile presence inventory, and the full environment variable name list — a dataset that reveals CI provider, cloud credential presence, and secret-store usage, suitable for follow-on credential targeting. The script's self-label as a 'security research POC collecting metadata only' does not change the behavior: the installer did not opt in, the destination is an anonymous third-party collector, and the presence inventory of credential paths is itself exfiltration.

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_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_