# MAL-2026-13017: Malicious code in bnpl-blocks-shops-api (npm)


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

## What is MAL-2026-13017?

MAL-2026-13017 is a malicious package in bnpl-blocks-shops-api, published on 5 Aug 2026. 

### Official description

index.js is the declared main entry and unconditionally requires./setup.js on load. setup.js reconstructs attacker-controlled endpoints via string-split obfuscation (e.g. ['oob-work','er.cf102-b','af.w','orkers','.de','v'].join('')) to build URLs at oob-worker.cf99-9b3.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf101-adf.workers.dev, and oob-worker.cf102-baf.workers.dev, with a DNS TXT chunked-base64 fallback via {sdk,ext,pkg,net}.dl.wel1.ru. Platform-specific binaries are downloaded to /tmp or %TEMP% under disguised names (e.g. dotnet_diag_*.exe,.cache_*), chmodded 0755, and spawned detached via /bin/sh -c or cmd.exe /c start /b. Dangerous API names are also fragmented (require('child_'+'process'), fs['chmod'+'Sync'], os['host'+'name']) to evade scanners. The fetched bytes are unpinned, unverified, and unrelated to the package's advertised SDK purpose; any consumer that requires this package triggers full-host code execution.

## What should I do about MAL-2026-13017?

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-2026-13017 is a malicious package: bnpl-blocks-shops-api (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-2026-13017/ (Markdown: https://insights.sbomify.com/MAL-2026-13017/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-13017

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-13017/
Summaries are generated and may contain mistakes; the official description above is the record.