# MAL-2026-12956: Malicious code in bnpl-blocks-independent-bnpl-features (npm)


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

## What is MAL-2026-12956?

MAL-2026-12956 is a malicious package in bnpl-blocks-independent-bnpl-features, published on 5 Aug 2026. 

### Official description

On require() of the package, index.js loads./_bridge.js which reconstructs attacker-controlled hostnames from split string fragments (oob-worker.cf10*.workers.dev, with a DNS TXT fallback via *.wel1.ru) using.join(''), downloads a platform-specific binary via https.get, writes it to /tmp or %TEMP% under a disguised name resembling dotnet_diag_<rand>.exe or.cache_<rand>, chmods 0755, and spawns it detached via /bin/sh -c or cmd.exe /c start /b. Execution is gated only by a mtime stamp file and a DISABLE_TELEMETRY-style env var. A DNS-TXT chunked-transfer channel base64-reassembles payload bytes as a fallback when HTTPS is blocked. Comments frame the behavior as 'telemetry'/'analytics'. Hostname reconstruction, disguised filename, detached spawn, and DNS-based delivery are deliberate evasion patterns rather than misconfiguration.

## What should I do about MAL-2026-12956?

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-2026-12956 is a malicious package: bnpl-blocks-independent-bnpl-features (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-2026-12956/ (Markdown: https://insights.sbomify.com/MAL-2026-12956/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-12956

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-12956/
Summaries are generated and may contain mistakes; the official description above is the record.