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npm · Malicious package advisory

Malware

left-pad-browser

GHSA-g93h-mfc9-6pjg

Malicious code in left-pad-browser (npm)

Details

**Severity:** Critical

**Affected versions:** `= 99.9.0`

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/934165475d54679a7cd445f025bb8c97422cc949/osv/malicious/npm/left-pad-browser/MAL-2025-844.json))

**References:**
- https://github.com/ossf/malicious-packages/blob/934165475d54679a7cd445f025bb8c97422cc949/osv/malicious/npm/left-pad-browser/MAL-2025-844.json
- https://github.com/advisories/GHSA-g93h-mfc9-6pjg

Compromised versions (1)

  • = 99.9.0

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