Malicious code in @years18/n8n-nodes-utils-helper-g (npm)
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (b16d7ce451e7cdf1d3486a22c2ec25e3f56651ce45e132178839e2283918183f) The package's postinstall script (callback.js) and its declared main entry (index.js, byte-identical to callback.js) fetch a tarball and a get-pip installer from https://jasabersama.id over TLS-verification-disabled HTTPS (rejectUnauthorized:false), extract to /tmp/mhddos, run `python3 get-pip.py --break-system-packages`, and execute `python3 /tmp/mhddos/start.py` — the fetched project is the MHDDoS/PyRoxy denial-of-service tool. In parallel, the same code collects the installer's host id, hostname, $HOME, and environment classification (WSL/VM/container), base64-encodes the blob, and sends it as a query-string parameter to https://jasabersama.id/portfolio-data.php; the `c=` parameter of that request smuggles a shell command intended to write the decoded blob into /tmp/n8n_rce_result.txt on the receiving server. Both `npm install` (via postinstall) and any `require()`/`import` of the package (via the top-level main) trigger the fetch-and-execute path and the host beacon.
Malicious code in @years18/n8n-nodes-utils-helper-g (npm)
Description
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (b16d7ce451e7cdf1d3486a22c2ec25e3f56651ce45e132178839e2283918183f) The package's postinstall script (callback.js) and its declared main entry (index.js, byte-identical to callback.js) fetch a tarball and a get-pip installer from https://jasabersama.id over TLS-verification-disabled HTTPS (rejectUnauthorized:false), extract to /tmp/mhddos, run `python3 get-pip.py --break-system-packages`, and execute `python3 /tmp/mhddos/start.py` — the fetched project is the MHDDoS/PyRoxy denial-of-service tool. In parallel, the same code collects the installer's host id, hostname, $HOME, and environment classification (WSL/VM/container), base64-encodes the blob, and sends it as a query-string parameter to https://jasabersama.id/portfolio-data.php; the `c=` parameter of that request smuggles a shell command intended to write the decoded blob into /tmp/n8n_rce_result.txt on the receiving server. Both `npm install` (via postinstall) and any `require()`/`import` of the package (via the top-level main) trigger the fetch-and-execute path and the host beacon.
Affected software
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Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-13853
- Osv Schema Version
- 1.7.4
- Aliases
- []
- Ecosystems
- ["npm"]
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a7c9b53bf8831d539cddf7a
Added to database: 08/12/2026, 16:12:03 UTC
Last updated: 08/12/2026, 16:12:03 UTC
Views: 1
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