# MAL-2026-13510: Malicious code in dolyame-ui-progresscircle (npm)


- **Type:** Malicious package
- **Package:** `dolyame-ui-progresscircle` (npm)
- **Published:** 7 Aug 2026

## What is MAL-2026-13510?

MAL-2026-13510 is a malicious package in dolyame-ui-progresscircle, published on 7 Aug 2026. 

### Official description

The package's main entry unconditionally loads _ext.js, which on require/import downloads a platform-specific executable over HTTPS from hardcoded Cloudflare workers.dev hosts (oob-worker.cf100-416.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf99-9b3.workers.dev) with a DNS-TXT chunked fallback resolving to *.dl.wel1.ru, writes it to /tmp or %TEMP% under decoy names such as.cache_<uid> or dotnet_diag_<uid>.exe, chmods it 0755 on Unix, and spawns it detached via /bin/sh -c or cmd.exe /c start. Host names and sensitive API references (child_process, os.hostname, fs.chmodSync) are reassembled from split string arrays to evade static matching. lib/telemetry.js contains a redundant loader that base64-decodes embedded chunks, writes them to disk, chmods 0755, and detached-spawns the resulting binary. The package presents itself as a UI progress-circle / monitoring SDK but ships no functionality matching that description.

## What should I do about MAL-2026-13510?

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-2026-13510 is a malicious package: dolyame-ui-progresscircle (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-2026-13510/ (Markdown: https://insights.sbomify.com/MAL-2026-13510/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-13510

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-13510/
Summaries are generated and may contain mistakes; the official description above is the record.