# MAL-2026-4193: Malicious code in private-next-pages (npm)


- **Type:** Malicious package
- **Package:** `private-next-pages` (npm)
- **Published:** 20 May 2026

## What is MAL-2026-4193?

MAL-2026-4193 is a malicious package in private-next-pages, published on 20 May 2026. 

### Official description

package.json declares a postinstall script that uses Node's child_process to execute reconnaissance commands (including `whoami`) and beacon results out via HTTPS. The script contacts https://api.ipify.org to resolve the installer's public IP, reads process.env, and sends data to an `.oast.fun` host — the Project Discovery `interact.sh` out-of-band testing service used as a generic exfiltration sink. On `npm install`, this fires automatically and leaks host identity, network egress IP, and environment variables to an attacker-controlled collector. There is no legitimate reason for a Next.js page utility package to perform host fingerprinting or beacon to an OOB interaction service at install time.

The OpenSSF Package Analysis project identified 'private-next-pages' @ 9.0.5 (npm) as malicious.

It is considered malicious because:

- The package communicates with a domain associated with malicious activity.

- The package executes one or more commands associated with malicious behavior.

## What should I do about MAL-2026-4193?

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-2026-4193 is a malicious package: private-next-pages (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-2026-4193/ (Markdown: https://insights.sbomify.com/MAL-2026-4193/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-4193

---
From sbomify Insights: https://insights.sbomify.com/MAL-2026-4193/
Summaries are generated and may contain mistakes; the official description above is the record.