ac-polyfills@99.9.9
Vulnerability report · Last retrieved from osv.dev October 7, 2026 at 7:32 AM UTC
OSV ID
MAL-2026-782
Ecosystem
npm
Summary
ac-polyfills@2.10.0 declares a preinstall lifecycle script in package.json (line 7-8) that runs wget to a hardcoded webhook.site collector URL (https://webhook.site/381d4406-8f87-4aab-961f-7a9496c21821/), sending the installer's username ($(whoami)), current working directory ($(pwd)), and hostname ($(hostname)) as query parameters. This fires automatically on npm install with no user interaction, exfiltrating installer identity and host information to a third-party webhook collector. The package name and shape are consistent with a dependency-confusion probe targeting an internal package name.
Source: amazon-inspector (98dfac851a08e8e8967e1386dadfd513226414b0ed65f6479a914479eb903878)
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