MAL-2026-12022 Malicious code in @keyv/serialize-superjson (npm)

Malicious package Published
Package
@keyv/serialize-superjson
Registry
npm

What is MAL-2026-12022?

MAL-2026-12022 is a malicious package in @keyv/serialize-superjson, published on 4 Aug 2026.

Official description

Package @keyv/[email protected] shows no a static rule matches and no traced malicious behavior. No install-time lifecycle hooks, network exfiltration, credential access, or code-fetch-and-execute patterns were observed in the shipped files.

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.

What should I do about MAL-2026-12022?

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

Sources

Also known as GHSA-3r64-hxqw-gm48.

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