{"id":"MAL-2026-16323","summary":"Malicious code in action-slack-message-root (npm)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (6d5f3deb6623e5340770d4e8866adc3d7239938e5adefc4b699c897287d84eba)\npackage.json declares scripts.preinstall = 'node index.js', which runs automatically on npm install. index.js collects host reconnaissance — os.hostname(), os.platform(), os.arch(), os.release(), os.uptime(), os.cpus(), memory info, and the output of shell commands `whoami`, `id`, `pwd`, and `uname -a` via child_process — and POSTs the JSON payload over plain HTTP to a hardcoded Burp Suite Collaborator subdomain at http://x86cmb7n60gbagfm4fdws0nw5nbjzanz.oastify.com. The package name resembles legitimate Slack-notification tooling, but the shipped code performs only reconnaissance exfiltration with no advertised functionality. The tarball also declares an unpinned dependency on openmct-heatmap ^1.0.1, consistent with a dependency-confusion / research-probe shape.\n","modified":"2026-09-21T04:00:06.690987549Z","published":"2026-09-21T03:30:11Z","database_specific":{"malicious-packages-origins":[{"versions":["1.0.1"],"id":"IN-MAL-2026-020226","import_time":"2026-09-21T03:46:37.677305656Z","modified_time":"2026-09-21T03:30:11Z","sha256":"6d5f3deb6623e5340770d4e8866adc3d7239938e5adefc4b699c897287d84eba","source":"amazon-inspector"}]},"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/action-slack-message-root/v/1.0.1"}],"affected":[{"package":{"name":"action-slack-message-root","ecosystem":"npm","purl":"pkg:npm/action-slack-message-root"},"versions":["1.0.1"],"database_specific":{"source":"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/action-slack-message-root/MAL-2026-16323.json","cwes":[{"cweId":"CWE-506","description":"The product contains code that appears to be malicious in nature.","name":"Embedded Malicious Code"}],"indicators":{"evidence_files":[{"tlsh":"f14142d029f56b3002e3b99e5a9760077323e2073c00b8e9bd9d93810f8c16c9a65bd5","path":"index.js","sha256":"87537a1a68267ba6ac23cea10b522174562d43d12f7213416f65063e5c29b4e7"},{"path":"package.json","sha256":"c94fbee85ff7d6b3cab174fc2c78dd1ced110344739bd27e81d6a25637cc6f88","tlsh":"ddc08c30cce4e9b335da26e3207e5017b5f16c4b005c7c9d73cb00299b9d6a6a4af31a"}],"package_integrity":[{"filename":"action-slack-message-root-1.0.1.tgz","hashes":{"sha1":"04d2f2dfaad38d2d178e17907553558a79dc742d","sha512_sri":"sha512-O/rx5iRNgiZYSK/IO1ooOEVr0QIiR2Ydt9icce6oKg5rgysnZNT22co2nIiAr58FrnsPfZhdXZxHP7LARYzAbA=="}}]}}}],"schema_version":"1.9.0","credits":[{"name":"Amazon Inspector","contact":["inspector-research@amazon.com"],"type":"FINDER"}]}