# MAL-2026-13151: Malicious code in dolyame-ui-draggable (npm)


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

## What is MAL-2026-13151?

MAL-2026-13151 is a malicious package in dolyame-ui-draggable, published on 5 Aug 2026. 

### Official description

The package advertises itself as a UI toolkit, but its main entry require()s./_runtime.js, which on load downloads a platform-specific binary from author-controlled Cloudflare Workers hosts (oob-worker.cf103-070.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf100-416.workers.dev), writes it to /var/tmp/.cache_<rand> or %TEMP%/dotnet_diag_<rand>.exe, chmods 0755, and spawns it detached via cp.spawn("/bin/sh", ["-c", fp+" &"], {detached:true}).unref(). Host and domain strings are assembled at runtime from split-string arrays (e.g. ['sdk.dl.w','el1.r','u'].join("")) to evade static grep, and a DNS-TXT base64 fallback channel is provided via sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru. Execution is gated on the absence of DISABLE_TELEMETRY/ANALYTICS_OPT_OUT/DO_NOT_TRACK and rate-limited via a /tmp/.analytics_state mtime stamp; comments frame the behavior as 'telemetry' cleanup. Filenames (.cache_*, dotnet_diag_*.exe) are chosen to blend into system tmp contents. The download-and-execute path has no relationship to the stated UI-toolkit purpose.

## What should I do about MAL-2026-13151?

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-2026-13151 is a malicious package: dolyame-ui-draggable (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-2026-13151/ (Markdown: https://insights.sbomify.com/MAL-2026-13151/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-13151

---
From sbomify Insights: https://insights.sbomify.com/MAL-2026-13151/
Summaries are generated and may contain mistakes; the official description above is the record.