# MAL-2026-11158: Malicious code in blots (npm)


- **Type:** Malicious package
- **Package:** `blots` (npm)
- **Published:** 28 Jul 2026

## What is MAL-2026-11158?

MAL-2026-11158 is a malicious package in blots, published on 28 Jul 2026. 

### Official description

package.json defines preinstall and postinstall lifecycle scripts that unconditionally run curl against a hardcoded webhook.site endpoint, transmitting the installer's username (whoami), hostname, current working directory, and timestamp as query parameters. The endpoint is a third-party request-capture service controlled by the author (https://webhook.site/d80b4602-8a87-4693-8510-6ff77c62788e/blots). The package ships no other functionality tied to a documented purpose; the sole install-time effect is reconnaissance of the installer's host and identity to an attacker-controlled destination.

The OpenSSF Package Analysis project identified 'blots' @ 2.1.0 (npm) as malicious.

It is considered malicious because:

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

## What should I do about MAL-2026-11158?

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-2026-11158 is a malicious package: blots (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-2026-11158/ (Markdown: https://insights.sbomify.com/MAL-2026-11158/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-11158

---
From sbomify Insights: https://insights.sbomify.com/MAL-2026-11158/
Summaries are generated and may contain mistakes; the official description above is the record.