OpenSSF/OSV advisory MAL-2026-14423 confirms this npm version as malicious. package.json declares a postinstall lifecycle script that runs curl at install time and transmits the installer's hostname (via $(hostname)) as a query parameter to a webhook.site collector...
Source
OpenSSF Malicious Packages via OSV
Summary
Malicious code in @medisend/shared (npm)
Details
package.json declares a postinstall lifecycle script that runs curl at install time and transmits the installer's hostname (via $(hostname)) as a query parameter to a webhook.site collector. The receiver ID in the URL is left as a `<your-id>` placeholder, so the beacon URL is not fully configured, but the postinstall hook still fires on `npm install` and issues an outbound request carrying host identification to a third-party collector. The package version tag also self-labels as `security-research`, but the shipped behavior — an automatic install-time beacon of host identity to an external collector — matches dependency-confusion / reconnaissance beacon shape rather than a benign library.
Decision reason
OpenSSF Malicious Packages via OSV confirms @medisend/shared@0.0.1-security-research as malicious (MAL-2026-14423): Malicious code in @medisend/shared (npm)