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npm · Malicious package advisory

Malware

antares-tethys-cygnus-antimatter

GHSA-8v76-ff4m-h73h

Malicious code in antares-tethys-cygnus-antimatter (npm)

Details

**Severity:** Critical

**Affected versions:** `> 0`

The package antares-tethys-cygnus-antimatter 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/ca35a319f3c5255ac2d7f28cf58023d75de17a35/osv/malicious/npm/antares-tethys-cygnus-antimatter/MAL-2025-14586.json))

**References:**
- https://github.com/ossf/malicious-packages/blob/ca35a319f3c5255ac2d7f28cf58023d75de17a35/osv/malicious/npm/antares-tethys-cygnus-antimatter/MAL-2025-14586.json
- https://github.com/advisories/GHSA-8v76-ff4m-h73h

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.