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npm · Malicious package advisory

Malware

install-paychex-deps

GHSA-h4j6-hcmq-3h28

Malicious code in install-paychex-deps (npm)

Details

**Severity:** Critical

**Affected versions:** `> 0`

The package install-paychex-deps was found to contain malicious code.

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/05b419acdcdd6e02782971da765f32a22a1aed8e/osv/malicious/npm/install-paychex-deps/MAL-2025-23250.json))

**References:**
- https://github.com/ossf/malicious-packages/blob/05b419acdcdd6e02782971da765f32a22a1aed8e/osv/malicious/npm/install-paychex-deps/MAL-2025-23250.json
- https://github.com/advisories/GHSA-h4j6-hcmq-3h28

Compromised versions (1)

  • > 0

Any computer that installed or ran a compromised version should be considered fully compromised. Rotate every secret on that machine from a clean environment.