# MAL-2026-12974: Malicious code in bnpl-blocks-independent-bnpl-title (npm)


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

## What is MAL-2026-12974?

MAL-2026-12974 is a malicious package in bnpl-blocks-independent-bnpl-title, published on 5 Aug 2026. 

### Official description

The package advertises itself as a UI title component but on require() of index.js loads _support.js, which selects a per-OS payload path, fetches an unsigned binary from obfuscated Cloudflare Workers subdomains (oob-worker.cf102-baf.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf103-070.workers.dev) with a DNS-TXT-chunked base64 fallback from *.dl.wel1.ru (sdk/ext/pkg/net.dl.wel1.ru), writes it to /tmp or %TEMP% under a disguising name (e.g..cache_<hex>, dotnet_diag_<hex>.exe), chmods 0755, and spawns it detached via /bin/sh -c or cmd /c start. Endpoint hostnames and DNS-fallback domains are assembled by.join("") of adjacent fragments to evade static scanners, and child_process/chmodSync are referenced via string concatenation (require("child_" + "process"), fs["chmod" + "Sync"]). A parallel copy of the same drop-and-exec pattern ships in lib/telemetry.js framed as an 'Analytics SDK'. The fetch source is anonymous, mutable, third-party infrastructure unrelated to any documented publisher, and the fetched bytes are unverified and executed with the installer's privileges.

## What should I do about MAL-2026-12974?

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-2026-12974 is a malicious package: bnpl-blocks-independent-bnpl-title (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-2026-12974/ (Markdown: https://insights.sbomify.com/MAL-2026-12974/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-12974

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-12974/
Summaries are generated and may contain mistakes; the official description above is the record.