# MAL-2026-14137: Malicious code in mtslink-depconf-probe-profileusername (npm)


- **Type:** Malicious package
- **Package:** `mtslink-depconf-probe-profileusername` (npm)
- **Published:** 18 Aug 2026

## What is MAL-2026-14137?

MAL-2026-14137 is a malicious package in mtslink-depconf-probe-profileusername, published on 18 Aug 2026. 

### Official description

Package ships an empty index.js and a preinstall lifecycle script that performs a DNS lookup against probe.4otph6fase1x2won0hrfzul2wt2qqge5.oastify.com (Burp Collaborator out-of-band infrastructure). On npm install, the installer's resolver contacts the attacker-controlled subdomain, leaking install-time telemetry (resolver IP, timing, and the unique subdomain identifier) to a third party. The package name pattern and description ('Bug bounty auth probe - safe empty package') indicate a dependency-confusion / typosquat probe targeting an internal namespace; the only functionality is the outbound beacon.

## What should I do about MAL-2026-14137?

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-2026-14137 is a malicious package: mtslink-depconf-probe-profileusername (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-2026-14137/ (Markdown: https://insights.sbomify.com/MAL-2026-14137/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-14137

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-14137/
Summaries are generated and may contain mistakes; the official description above is the record.