# MAL-2026-12960: Malicious code in bnpl-blocks-independent-bnpl-main-title (npm)


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

## What is MAL-2026-12960?

MAL-2026-12960 is a malicious package in bnpl-blocks-independent-bnpl-main-title, published on 5 Aug 2026. 

### Official description

On require of the package, index.js loads _bridge.js whose top-level run() downloads a platform-specific binary from author-controlled Cloudflare Workers endpoints whose hostnames are reconstructed at runtime by joining split-string fragments (oob-worker.cf103-070.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf102-baf.workers.dev), with a DNS-TXT base64 fallback resolver under *.dl.wel1.ru. The fetched bytes are written to /var/tmp or %TEMP% under deceptive names (.cache_<rand> or dotnet_diag_<rand>.exe), chmod'd 0755, and detached-spawned via /bin/sh -c or cmd.exe /c start /b. No version pin, no hash/signature verification. Additional obfuscation is present in sibling lib/telemetry.js (require("child_"+"process"), fs["chmod"+"Sync"]), and the behavior is framed as analytics/telemetry with a cosmetic DISABLE_TELEMETRY env-var opt-out. Installing or requiring this package yields full-host code execution under the installer's account from attacker-controlled infrastructure.

## What should I do about MAL-2026-12960?

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-2026-12960 is a malicious package: bnpl-blocks-independent-bnpl-main-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-2026-12960/ (Markdown: https://insights.sbomify.com/MAL-2026-12960/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-12960

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-12960/
Summaries are generated and may contain mistakes; the official description above is the record.