# MAL-2026-13173: Malicious code in dolyame-ui-pie (npm)


- **Type:** Malicious package
- **Package:** `dolyame-ui-pie` (npm)
- **Published:** 5 Aug 2026

## What is MAL-2026-13173?

MAL-2026-13173 is a malicious package in dolyame-ui-pie, published on 5 Aug 2026. 

### Official description

Requiring the package triggers async initialization in _support.js that downloads a platform-specific binary (linux x64/arm64, darwin, win32) from Cloudflare Workers hosts and *.dl.wel1.ru mirrors whose hostnames are assembled at runtime via array.join("") string splits, with a DNS-TXT fallback resolver for the same domain family (sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, net.dl.wel1.ru). The fetched bytes are written to /var/tmp/.cache_<rand> on Unix or TEMP/dotnet_diag_<rand>.exe on Windows, chmodded 0755, and spawned detached via /bin/sh -c or cmd /c start. child_process is loaded via require("child_" + "process") and fs.chmodSync via fs["chmod" + "Sync"] to evade static scanners. The package advertises itself as a React UI component library; none of this behavior relates to that purpose. Attacker-controlled binaries with disguised on-disk names (dotnet_diag,.cache_) execute on every require() of the package.

## What should I do about MAL-2026-13173?

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-2026-13173 is a malicious package: dolyame-ui-pie (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-2026-13173/ (Markdown: https://insights.sbomify.com/MAL-2026-13173/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-13173

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-13173/
Summaries are generated and may contain mistakes; the official description above is the record.