Malicious code in cewe-npm-cops (npm)

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--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (673bd57ca8632e768772381c7439b0b15008914879dfb5c22d42e40ce954c9e5) [email protected] is a dependency-confusion probe. package.json declares scripts.preinstall = 'node preinstall.js'; preinstall.js reads os.hostname() and issues a dns.lookup against `<hostname>.zfir3qor582xqvyqm0tdc7xpqgw7ky8n.oastify.com`, an author-controlled Burp Collaborator (Interactsh) out-of-band host. Every npm install of this package unconditionally leaks the installer's machine hostname via DNS to a third-party OOB service. The package is otherwise hollow: version is set to 99.9.9 (max-version squat designed to override an internal package of the same name during resolution), main is an empty index.js, and author is the placeholder 'Your_HackerOne_Username'. The self-described 'harmless PoC' framing does not change the behavior: installer host identity is exfiltrated to an attacker-controlled endpoint at install time.

Source published

6 Aug 2026 16:16:37 UTC

Source modified

24 Sep 2026 09:30:11 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.