MAL-2026-5155 Malicious code in @ownit/core (npm)

Malicious package Published
Package
@ownit/core
Registry
npm

What is MAL-2026-5155?

MAL-2026-5155 is a malicious package in @ownit/core, published on 1 Jun 2026.

Official description

Dependency confusion attack campaign targeting Scandinavian telecommunications and digital services organizations (Telenor, Ownit, Vimla, and Customer 360 / C360). Four packages published by the debating0166 npm account use inflated version numbers (99.0.x) to win npm registry resolution over private internal packages of the same names. A shared callback.js executed via the preinstall hook collects system reconnaissance data: hostname, username, working directory, platform, network interfaces, npm registry configuration, and environment variables matching organization-specific and CI/CD patterns (telenor, ownit, vimla, c360, customer, threesixty, maui, CI tokens, pipeline variables) and exfiltrates the payload via HTTP POST to 128.199.50.160:8888/depconf.

This package impersonates @ownit/core, an internal package of Ownit, a Swedish broadband and mobile services provider. Version 99.0.0 was published to resolve ahead of any private registry copy.

What should I do about MAL-2026-5155?

Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.

Sources

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