Malicious code in @wbnr/frontend-shared (npm)
Exploitation and risk
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osv · MAL-2026-13436
Published--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (6208a0da32b8b7ae795d85ecbf95788b876729db08b0a595ad24f05a02dbbdbe) The package declares a preinstall lifecycle script (preinstall.js) that automatically runs on npm install. The script reads the installer's OS username (from process.env USER/USERNAME) and hostname (os.hostname()), embeds them into a subdomain of a hardcoded 4otph6fase1x2won0hrfzul2wt2qqge5.oastify.com callback host, and transmits them via both a DNS lookup and an HTTPS GET to that host at path /depconf/. The behavior is consistent with a dependency-confusion probe using Burp Collaborator (oastify.com) infrastructure; installer identifiers (username, internal hostname, timestamp, package name) are disclosed to a third-party callback domain on every install.
- Source published
- 6 Aug 2026 16:19:30 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.