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npm · Malicious package advisory

Malware

json9

GHSA-rhr8-9hgr-686c

Malicious code in json9 (npm)

Details

**Severity:** Critical

**Affected versions:** `> 0`

The package json9 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/ce5aebcf135d19fafa94c24995d7ad8fac9d024d/osv/malicious/npm/json9/MAL-2025-23959.json))

**References:**
- https://github.com/ossf/malicious-packages/blob/ce5aebcf135d19fafa94c24995d7ad8fac9d024d/osv/malicious/npm/json9/MAL-2025-23959.json
- https://github.com/advisories/GHSA-rhr8-9hgr-686c

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.