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Malicious MAL-2026-16221

bender-rspack-config

npm package · versions 1.0.0

Reported Sep 15, 2026 · Updated Sep 17, 2026

If this package is installed

Remove it, treat the machine (or CI runner) as compromised, and rotate every secret, token and key it could access — from a different, clean machine.

Details

Source: amazon-inspector (3a6997cea54ae81d1addcb41ddac29e94923dfa1042265253c555cb4945ad5b4)
package.json declares a preinstall lifecycle script that runs `wget` against a hardcoded webhook.site URL, embedding `$(whoami)`, `$(pwd)`, and `$(hostname)` as query-string parameters. The request fires automatically on `npm install`, transmitting the installer's username, working-directory path, and hostname to an author-controlled collector at webhook.site/9d385aa8-875e-48b6-938c-6c0f5a0e8319/. The behavior is self-labeled as a dependency-confusion proof of concept, but the shipped code is a functioning identity-beacon regardless of framing.

Source: ossf-package-analysis (159730c04aeb50c0e832685be81c3f332d8692bf4a9f1a419c7223dbe5059491)
The OpenSSF Package Analysis project identified 'bender-rspack-config' @ 1.0.0 (npm) as malicious.

It is considered malicious because:

- The package executes one or more commands associated with malicious behavior.