MAL-2026-6123 Malicious code in @onum-releases/auth (npm)
Malicious package
Published
MAL-2026-6123 is a malicious package: @onum-releases/auth (npm). Every version was published to cause harm.
Task:
1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.
2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.
3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.
4. If the package is not used anywhere, say so and change nothing.
Reference: https://insights.sbomify.com/MAL-2026-6123/ (Markdown: https://insights.sbomify.com/MAL-2026-6123/index.md)
- Package
- @onum-releases/auth
- Registry
- npm
What is MAL-2026-6123?
MAL-2026-6123 is a malicious package in @onum-releases/auth, published on 18 Jun 2026.
Official description
On
require('@onum-releases/auth'), index.js reads os.hostname() and issues an HTTP GET to auth.<hostname>.200majoeu01dk02xnjdajro1isojc90y.oastify.com, transmitting the installer's host identifier to a Burp Collaborator out-of-band domain via both DNS resolution and HTTP. The package.json self-identifies as a 'dependency-confusion / scope-takeover demonstration' placeholder under the @onum-releases scope, so any build that mistakenly resolves an internal @onum-releases/* name to the public registry will leak its hostname to a third-party collaborator endpoint. Although labeled a PoC, the import-time beacon performs unconsented exfiltration of installer-side data to an attacker-controlled domain.What should I do about MAL-2026-6123?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.