# MAL-2026-16417: Malicious code in eslint-config-compact-utils (npm)


- **Type:** Malicious package
- **Package:** `eslint-config-compact-utils` (npm)
- **Published:** 22 Sep 2026

## What is MAL-2026-16417?

MAL-2026-16417 is a malicious package in eslint-config-compact-utils, published on 22 Sep 2026. 

### Official description

On require, index.js collects host reconnaissance data (os.hostname(), os.userInfo().username, os.platform(), architecture, Node version, current working directory) together with CI/repository environment variables (CI, RUNNER_NAME, GITHUB_REPOSITORY) and sends them as query parameters via https.get to the hardcoded endpoint https://cbrsuo9293.execute-api.us-east-1.amazonaws.com/c. The exfiltration fires as a side effect of importing the module and is unrelated to the package's advertised ESLint configuration purpose. The shape (import-time beacon carrying host identity plus CI/repo identifiers to a non-first-party AWS API Gateway) is consistent with dependency-confusion / typosquat reconnaissance.

The OpenSSF Package Analysis project identified 'eslint-config-compact-utils' @ 1.0.0 (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-2026-16417?

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-2026-16417 is a malicious package: eslint-config-compact-utils (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-2026-16417/ (Markdown: https://insights.sbomify.com/MAL-2026-16417/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-16417

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-16417/
Summaries are generated and may contain mistakes; the official description above is the record.