verify-contract-viem

GHSA-wgc5-g8h3-3grx

Malicious code in verify-contract-viem (npm)

Details

**Severity:** Critical

**Affected versions:** `= 1.0.0`

## Source: ossf-package-analysis (3996f3daf2ae95942dab5a1961f8e5c1c267aa093c073002b5771860fe826d66)
The OpenSSF Package Analysis project identified 'verify-contract-viem' @ 1.0.0 (npm) as malicious.

It is considered malicious because:

- The package communicates with a domain associated with malicious activity.

- The package executes one or more commands associated with malicious behavior.

---

Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/76323eaa1857e7c8873aa005201b1c9281ac3cdd/osv/malicious/npm/verify-contract-viem/MAL-2026-15599.json))

**References:**
- https://github.com/ossf/malicious-packages/blob/76323eaa1857e7c8873aa005201b1c9281ac3cdd/osv/malicious/npm/verify-contract-viem/MAL-2026-15599.json
- https://github.com/ossf/malicious-packages/blob/f33ea6ee5901735252a67311ba0c6b69d514dbde/osv/malicious/npm/verify-contract-viem/MAL-2026-15599.json
- https://www.npmjs.com/package/verify-contract-viem/v/1.0.0
- https://github.com/advisories/GHSA-wgc5-g8h3-3grx

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.