# MAL-2026-14536: Malicious code in mt-ts-serverless-starter (npm)


- **Type:** Malicious package
- **Package:** `mt-ts-serverless-starter` (npm)
- **Published:** 26 Aug 2026

## What is MAL-2026-14536?

MAL-2026-14536 is a malicious package in mt-ts-serverless-starter, published on 26 Aug 2026. 

### Official description

package.json declares a preinstall hook that runs `node index.js` on every `npm install`. index.js collects installer host identity and system files — os.hostname(), os.userInfo(), home directory, DNS server configuration, /etc/passwd, /etc/hosts, and the full package.json — and HTTPS POSTs the payload to the hardcoded Burp Collaborator subdomain e4jw9ucdu7sdebgoqqx919p6qxwoke83.oastify.com. The exfiltration fires unconditionally at install time with no user interaction.

## What should I do about MAL-2026-14536?

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-2026-14536 is a malicious package: mt-ts-serverless-starter (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-2026-14536/ (Markdown: https://insights.sbomify.com/MAL-2026-14536/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-14536

---
From sbomify Insights: https://insights.sbomify.com/MAL-2026-14536/
Summaries are generated and may contain mistakes; the official description above is the record.