# MAL-2026-17190: Malicious code in cma-self-hosted-sandbox-cf (npm)


- **Type:** Malicious package
- **Package:** `cma-self-hosted-sandbox-cf` (npm)
- **Published:** 26 Sep 2026

## What is MAL-2026-17190?

MAL-2026-17190 is a malicious package in cma-self-hosted-sandbox-cf, published on 26 Sep 2026. 

### Official description

package.json declares a preinstall hook that runs index.js on npm install. index.js collects the machine's hostname, current user info, home directory, configured DNS servers, and the contents of /etc/passwd and /etc/hosts, then HTTPS POSTs the JSON payload to the hardcoded Burp Collaborator subdomain 49bl3t5yt786ymbtth24nnlbs2ytmka9.oastify.com. The behavior fires automatically on install with no user interaction, the destination is an attacker-controlled out-of-band interaction host unrelated to any legitimate package function, and the collected data comprises installer-side system identifiers and local account/host files. This is a dependency-confusion/recon exfiltration payload with no other functionality present in the package.

## What should I do about MAL-2026-17190?

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-2026-17190 is a malicious package: cma-self-hosted-sandbox-cf (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-2026-17190/ (Markdown: https://insights.sbomify.com/MAL-2026-17190/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-17190

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-17190/
Summaries are generated and may contain mistakes; the official description above is the record.