# MAL-2026-16260: Malicious code in confx1789550882 (npm)


- **Type:** Malicious package
- **Package:** `confx1789550882` (npm)
- **Published:** 17 Sep 2026

## What is MAL-2026-16260?

MAL-2026-16260 is a malicious package in confx1789550882, published on 17 Sep 2026. 

### Official description

The package's main file index.js is an IIFE that, when loaded in a browser same-origin context (e.g. via unpkg), reads location.href and document.cookie, fetches authenticated endpoints such as /profile, /admin, /dev, /flag, and /me with credentials:'include', and POSTs the responses along with a matched flag pattern to the hardcoded webhook https://webhook.site/04d98207-c947-4938-9f0c-f92feae051cb/. package.json contains only a 'ctf' description with no author or repository, and the single shipped artifact is this exfiltration payload. Comments in the file describe it as an unpkg-hosted exfil payload.

## What should I do about MAL-2026-16260?

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-2026-16260 is a malicious package: confx1789550882 (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-2026-16260/ (Markdown: https://insights.sbomify.com/MAL-2026-16260/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-16260

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-16260/
Summaries are generated and may contain mistakes; the official description above is the record.