# MAL-2026-12726: Malicious code in devplatform-nx-react (npm)


- **Type:** Malicious package
- **Package:** `devplatform-nx-react` (npm)
- **Published:** 5 Aug 2026
- **Also known as:** GHSA-prvc-p92j-5q2x

## What is MAL-2026-12726?

MAL-2026-12726 is a malicious package in devplatform-nx-react, published on 5 Aug 2026. 

### Official description

The package advertises itself as 'reusable nx react components' but its index.js unconditionally requires _support.js, which fetches and executes an attacker-controlled binary on load. Hostnames are assembled at runtime from split character arrays to evade static analysis: HTTPS mirrors resolve to oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev, and oob-worker.cf103-070.workers.dev on Cloudflare Workers, with a DNS-TXT chunked fallback against sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru (a count is read from c.<domain>, then N base64 TXT chunks are reassembled into an executable). The downloaded payload is written to a temp path with a randomized name, chmodded 0755, and spawned detached via `spawn('/bin/sh', ['-c', fp+' &'])` on Unix or `cmd.exe /c start /b fp` on Windows. Comments and identifiers ('analytics_state', 'dotnet_diag_', 'telemetry', 'Cross-platform path resolution') act as cover for the loader. The dropper has no relation to the package's stated purpose, and no integrity check, pinning, or publisher-controlled source is present.

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

## What should I do about MAL-2026-12726?

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-2026-12726 is a malicious package: devplatform-nx-react (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-2026-12726/ (Markdown: https://insights.sbomify.com/MAL-2026-12726/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-12726

---
From sbomify Insights: https://insights.sbomify.com/MAL-2026-12726/
Summaries are generated and may contain mistakes; the official description above is the record.