MAL-2026-3721 Malicious code in npmjs_ethers-common (npm)

Malicious package Published
Package
npmjs_ethers-common
Registry
npm

What is MAL-2026-3721?

MAL-2026-3721 is a malicious package in npmjs_ethers-common, published on 13 May 2026.

Official description

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

The OpenSSF Package Analysis project identified 'npmjs_ethers-common' @ 2.0.0 (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.

What should I do about MAL-2026-3721?

Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.

Sources

Also known as GHSA-xjqh-ppr3-mrhj.

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