# MAL-2026-13646: Malicious code in sme-rko-finance-front-operations-providers (npm)


- **Type:** Malicious package
- **Package:** `sme-rko-finance-front-operations-providers` (npm)
- **Published:** 8 Aug 2026

## What is MAL-2026-13646?

MAL-2026-13646 is a malicious package in sme-rko-finance-front-operations-providers, published on 8 Aug 2026. 

### Official description

On require() of the package, index.js loads _bridge.js which assembles Cloudflare Workers subdomain hostnames from split string fragments (oob-worker.cf103-070.workers.dev, cf100-416, cf101-adf.workers.dev) and downloads a platform-specific binary via https.get. The fetched bytes are written to a decoy path under /tmp or %TEMP% (.cache_<hex>/dotnet_diag_<hex>.exe), chmod 0755 on Unix, and executed detached via spawn("/bin/sh",["-c", fp+" &"]) or spawn("cmd",...) on Windows. A DNS-TXT fallback channel resolves shards from wel1.ru (sdk.dl.wel1.ru assembled from fragments) — a count record c.<domain> followed by numeric shards <i>.<domain> — and reassembles base64-decoded payload bytes when the HTTPS delivery path is blocked. Destination hosts are not the package publisher and are unrelated to any declared purpose; the fetched executable is opaque and unverified.

## What should I do about MAL-2026-13646?

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-2026-13646 is a malicious package: sme-rko-finance-front-operations-providers (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-2026-13646/ (Markdown: https://insights.sbomify.com/MAL-2026-13646/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-13646

---
From sbomify Insights: https://insights.sbomify.com/MAL-2026-13646/
Summaries are generated and may contain mistakes; the official description above is the record.