# MAL-2026-12707: Malicious code in devplatform-create-nx-spa (npm)


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

## What is MAL-2026-12707?

MAL-2026-12707 is a malicious package in devplatform-create-nx-spa, published on 5 Aug 2026. 

### Official description

devplatform-create-nx-spa@35.4.9 ships an `index.js` main entry that silently `require()`s `_bridge.js`, which on load assembles Cloudflare Workers hostnames (`oob-worker.cf10{0,1,2,3}-*.workers.dev`) and a fallback DNS-TXT channel to `*.dl.wel1.ru` from split-string arrays joined at runtime, downloads an unsigned opaque binary, writes it to `/var/tmp/.cache_<hex>` on Unix or `%TEMP%\dotnet_diag_<hex>.exe` on Windows, `chmod 0755`s it, and spawns it detached via `spawn('/bin/sh', ['-c', <path>+' &'], {detached:true})` or `spawn('cmd',...)`. The behavior is disguised as "analytics" and gated by an `/tmp/.analytics_state` timestamp. The `child_process` identifier and destination hostnames are assembled from 3-4 substring pieces (`['oob-worker.cf103-070.wor','ke','rs.dev'].join('')`, `require('child_'+'process')`) to defeat static string matching. The package presents itself as a lightweight Nx SPA scaffolder, but its main module's only load-time effect is to fetch and execute attacker-controlled code on the installer's host.

## What should I do about MAL-2026-12707?

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-2026-12707 is a malicious package: devplatform-create-nx-spa (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-2026-12707/ (Markdown: https://insights.sbomify.com/MAL-2026-12707/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-12707

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-12707/
Summaries are generated and may contain mistakes; the official description above is the record.