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OpenAdvisories
Malicious MAL-2026-16417

eslint-config-compact-utils

npm package · versions 1.0.2, 1.0.0

Reported Sep 22, 2026 · Updated Sep 23, 2026

If this package is installed

Remove it, treat the machine (or CI runner) as compromised, and rotate every secret, token and key it could access — from a different, clean machine.

Details

Source: amazon-inspector (414c7f8397efb591ffe6f87f9c44e8eb803606eb4789d357abe337d3225cc46f)
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.

Source: ossf-package-analysis (bc5522528e8b5b20c598dc3047008916fc237ee068e6e1a24d8709ee5d451de5)
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.