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MAL-2026-14422

Malicious code in @medisend/core (npm)

Details

--- _-= Per source details. Do not edit below this line.=-_

## Source: amazon-inspector (18f32429d1bfdc9438f2f03f531e5c2fef53e0e69104e3124499cf6f42ce52a1) package.json declares a postinstall lifecycle script that runs curl against https://webhook.site/<id> with the installer's hostname appended as a query parameter, transmitting the host identifier to a third-party request-inspection collector on every npm install. The package name @medisend/core with version 0.0.1-security-research and a description referencing a dependency-confusion test targets internal builds that expect a private @medisend/core package; when such a build resolves this public package instead, the postinstall runs automatically and leaks the installer's hostname off-host. The self-labelled 'security research' framing does not change the effect: any installer that resolves this package executes an unconsented host-identifier beacon to a destination controlled by whoever provisioned the webhook.site URL.

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Affected packages

npm / @medisend/core

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References