Malicious code in action-slack-message-root (npm)
Exploitation and risk
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osv · MAL-2026-16323
Published--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (6d5f3deb6623e5340770d4e8866adc3d7239938e5adefc4b699c897287d84eba) package.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. ## Source: ghsa-malware (3ee3ee5a7d3b1f3cc29a7439cd940b7821e5735ae2f7f873b8cd540115315b8b) Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.
- Source published
- 21 Sep 2026 03:30:11 UTC
- Source modified
- 22 Sep 2026 18:45:07 UTC
- Saved here
- 24 Oct 2026 13:17:17 UTC
- Source terms
- OSV · upstream source license applies
Original source record · Cite this exact observation · Complete original publisher JSON
Source: osv · OSV · upstream source license applies. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.