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npm · Malicious package advisory

Malware

jsmimeparser

GHSA-mxq7-82pw-827m

Malicious code in jsmimeparser (npm)

Details

**Severity:** Critical

**Affected versions:** `>= 3.0.1`

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/ce5aebcf135d19fafa94c24995d7ad8fac9d024d/osv/malicious/npm/jsmimeparser/MAL-2025-6289.json))

**References:**
- https://github.com/ossf/malicious-packages/blob/ce5aebcf135d19fafa94c24995d7ad8fac9d024d/osv/malicious/npm/jsmimeparser/MAL-2025-6289.json
- https://github.com/advisories/GHSA-mxq7-82pw-827m

Compromised versions (1)

  • >= 3.0.1

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