# MAL-2026-12962: Malicious code in bnpl-blocks-independent-bnpl-navigation (npm)


- **Type:** Malicious package
- **Package:** `bnpl-blocks-independent-bnpl-navigation` (npm)
- **Published:** 5 Aug 2026

## What is MAL-2026-12962?

MAL-2026-12962 is a malicious package in bnpl-blocks-independent-bnpl-navigation, published on 5 Aug 2026. 

### Official description

On require(), _compat.js selects a platform-specific path and downloads a binary from one of four hardcoded Cloudflare Workers hosts whose names are assembled at runtime by joining split-string arrays to evade static analysis (oob-worker.cf99-9b3.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf100-416.workers.dev), with a DNS TXT fallback channel that reassembles base64-encoded chunks from records under sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru. The fetched bytes are written to /var/tmp or %TEMP% under disguised names (.cache_<hex> on Unix, dotnet_diag_<hex>.exe on Windows), chmod 0755, and executed detached via spawn("/bin/sh",["-c", path+" &"], {detached:true}) or cmd.exe /c start /b. No hash or signature verification is performed on the downloaded artifact; execution is gated only by environment-variable flags and a 22956-second time marker. The package name mimics a BNPL WordPress-blocks helper but the shipped code performs no such function.

## What should I do about MAL-2026-12962?

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-2026-12962 is a malicious package: bnpl-blocks-independent-bnpl-navigation (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-2026-12962/ (Markdown: https://insights.sbomify.com/MAL-2026-12962/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-12962

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-12962/
Summaries are generated and may contain mistakes; the official description above is the record.