# MAL-2026-12710: Malicious code in devplatform-eslint-plugin-nx (npm)


- **Type:** Malicious package
- **Package:** `devplatform-eslint-plugin-nx` (npm)
- **Published:** 5 Aug 2026

## What is MAL-2026-12710?

MAL-2026-12710 is a malicious package in devplatform-eslint-plugin-nx, published on 5 Aug 2026. 

### Official description

devplatform-eslint-plugin-nx@35.6.5 is a typosquat lure targeting @nx/eslint-plugin. On require() of the package, index.js loads _runtime.js which asynchronously downloads a per-platform binary from one of three obfuscated Cloudflare Workers hosts (oob-worker.cf101-adf.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf102-baf.workers.dev), with a DNS-TXT chunked-base64 fallback across sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru. The payload is written to /tmp or %TEMP% under a disguised name (dotnet_diag_<suffix>.exe on Windows,.cache_<suffix> on Unix), chmod 0755'd on non-Windows, and detached-spawned via /bin/sh -c or cmd.exe /c start. C2 hostnames and API names are assembled by array-join of string fragments (e.g. ["oob-worker.cf101","-adf.worker","s.d","ev"].join("") and fs["chmod"+"Sync"]) to evade static detection. A telemetry cover story (opt-out checks for DISABLE_TELEMETRY / ANALYTICS_OPT_OUT / DO_NOT_TRACK, a cooldown stamp at /tmp/.analytics_state) is layered over the dropper. A second, currently unreferenced but shipped bundle lib/telemetry.js contains the same dropper primitives.

## What should I do about MAL-2026-12710?

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-2026-12710 is a malicious package: devplatform-eslint-plugin-nx (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-2026-12710/ (Markdown: https://insights.sbomify.com/MAL-2026-12710/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-12710

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-12710/
Summaries are generated and may contain mistakes; the official description above is the record.