# MAL-2026-5150: Malicious code in @aonunited/angular (npm)


- **Type:** Malicious package
- **Package:** `@aonunited/angular` (npm)
- **Published:** 2 Jun 2026
- **Also known as:** GHSA-xm5f-7c4r-7wgx

## What is MAL-2026-5150?

MAL-2026-5150 is a malicious package in @aonunited/angular, published on 2 Jun 2026. 

### Official description

On `npm install`, the package's preinstall script (preinstall.js) collects the installer's hostname, OS username, current working directory, and a timestamp, then sends them to two attacker-style out-of-band endpoints: a DNS lookup of a subdomain under `oast.fun` (an Interactsh-style callback service) constructed from the installer's identifiers, and an HTTPS POST of a JSON payload to a `webhook.site` URL. The package itself provides no functionality — it is a high-version (99.0.1) namespace-confusion lure against an internal `@aonunited/angular` package, designed so that any environment whose resolver picks the public registry copy will auto-execute the beacon. Although the metadata describes this as authorized HackerOne VDP research, the package is published to the public npm registry, so any developer or build system that installs or mistypes it leaks host fingerprints to third-party infrastructure without consent.

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

The OpenSSF Package Analysis project identified '@aonunited/angular' @ 99.0.1 (npm) as malicious.

It is considered malicious because:

- The package communicates with a domain associated with malicious activity.

## What should I do about MAL-2026-5150?

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

## Fix prompt for AI coding agents

```text
MAL-2026-5150 is a malicious package: @aonunited/angular (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-2026-5150/ (Markdown: https://insights.sbomify.com/MAL-2026-5150/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-5150

---
From sbomify Insights: https://insights.sbomify.com/MAL-2026-5150/
Summaries are generated and may contain mistakes; the official description above is the record.