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npm · Malicious package advisory

Malware

example-yarn

GHSA-c8xx-hpwg-667m

Malicious code in example-yarn (npm)

Details

**Severity:** Critical

**Affected versions:** `= 1.0.0`

The package communicates with a domain associated with malicious activity.

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/71b5ccd62809b0f6e173eff59b5900130cf7fc02/osv/malicious/npm/example-yarn/MAL-2025-655.json))

**References:**
- https://github.com/ossf/malicious-packages/blob/71b5ccd62809b0f6e173eff59b5900130cf7fc02/osv/malicious/npm/example-yarn/MAL-2025-655.json
- https://github.com/advisories/GHSA-c8xx-hpwg-667m

Compromised versions (1)

  • = 1.0.0

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