{"id":"MAL-2026-13899","summary":"Malicious code in @years19/n8n-nodes-utils-helper-p (npm)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (2796fa0be5e82ae475ed35463aa9f400091a3856a0fc96426e8515b012dd0e9a)\nOn npm install (postinstall) and on require of the main entry index.js, the package fetches multiple tarballs (mhddos, pyroxy-full, impacket, multidict) from jasabersama.id over an HTTPS connection with TLS verification disabled, extracts them to /tmp and the Python user site-packages directory, and launches three background python3 processes running mhddos against the hardcoded target 103.118.252.21 (UDP:80, TCP:443, GET:80 for 600 seconds). callback.js and index.js are byte-identical, so the payload fires both from the postinstall lifecycle and from require/import when n8n loads the community node, defeating --ignore-scripts. The script additionally collects `id` and `hostname` output plus attack-process status, base64-encodes them, and sends them via GET to https://jasabersama.id/portfolio-data.php with a `k=` key and a `c=` parameter that carries a shell command (`echo \u003cb64\u003e | base64 -d \u003e\u003e /tmp/n8n_rce_result.txt`), providing a reporting/command channel to the operator.\n","modified":"2026-08-12T15:30:13.385868021Z","published":"2026-08-12T15:08:48Z","database_specific":{"malicious-packages-origins":[{"id":"IN-MAL-2026-017588","import_time":"2026-08-12T15:26:12.260218102Z","modified_time":"2026-08-12T15:08:48Z","sha256":"2796fa0be5e82ae475ed35463aa9f400091a3856a0fc96426e8515b012dd0e9a","source":"amazon-inspector","versions":["1.0.0"]}]},"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/@years19/n8n-nodes-utils-helper-p/v/1.0.0"}],"affected":[{"package":{"name":"@years19/n8n-nodes-utils-helper-p","ecosystem":"npm","purl":"pkg:npm/%40years19/n8n-nodes-utils-helper-p"},"versions":["1.0.0"],"database_specific":{"indicators":{"package_integrity":[{"filename":"n8n-nodes-utils-helper-p-1.0.0.tgz","hashes":{"sha1":"66b9e47b3831c68d8390d28b4f05bed0379e6798","sha512_sri":"sha512-KOVjFVRJXkYk7mlzOuD1AHOjrXwtCGxT5hbi8vpPWIHHkPmJNKUyozICkoSgBfmfNudB0FJJagGZG8nNwlIO3g=="}}],"evidence_files":[{"path":"callback.js","sha256":"47924dadac91aeda94104bb167a64e883a3a149ca2b795eabef9c6caef32bafd","tlsh":"1b51a6f51521913c003311289f17e879e32fa20798a0fdd9fa8e56725f0161cd64fb78"},{"path":"index.js","sha256":"47924dadac91aeda94104bb167a64e883a3a149ca2b795eabef9c6caef32bafd","tlsh":"1b51a6f51521913c003311289f17e879e32fa20798a0fdd9fa8e56725f0161cd64fb78"}]},"source":"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@years19/n8n-nodes-utils-helper-p/MAL-2026-13899.json","cwes":[{"cweId":"CWE-506","description":"The product contains code that appears to be malicious in nature.","name":"Embedded Malicious Code"}]}}],"schema_version":"1.9.0","credits":[{"name":"Amazon Inspector","contact":["inspector-research@amazon.com"],"type":"FINDER"}]}