Which versions of npmjs_hardhat-common are malicious?

The following npm versions of npmjs_hardhat-common are flagged malicious: 2.0.0. Treat any of these as compromised.

How do I remediate npmjs_hardhat-common if I installed it?

Remove npmjs_hardhat-common from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound network activity or persistence. Use O3 Security's dependency scanner to confirm the package and its artifacts are fully purged across your stack.

Is npmjs_hardhat-common part of a known attack campaign?

Yes — npmjs_hardhat-common is associated with the GHSA-6w5w-56vc-rg6h campaign. Packages in the same campaign often share infrastructure and payloads, so check whether any related packages are also in your dependency tree.

Can O3 Security detect npmjs_hardhat-common in my codebase?

Yes. O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, blocking npmjs_hardhat-common and packages like it before any post-install script runs.

Malicious package

npmjs_hardhat-commonnpm

Malicious code in npmjs_hardhat-common (npm) Remove it immediately and rotate any exposed credentials.

MAL-2026-3722

Immediate action

Remove the package, then rotate any secrets the build/runtime could reach.

npm uninstall npmjs_hardhat-common

What this malware does

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_hardhat-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.

Malicious versions

1 flagged

2.0.0

Indicators of compromise (SHA-256)

73b9457a26db5dc4cbd5563b20a8ac3cb1ee43af160893d862ff2c0e0d4aea0d

687cf12a3e056374d2222b02393858ebeca4856448165be0426f8fb32d207974

Frequently asked questions

No. npmjs_hardhat-common on npm has been identified as a malicious package (version 2.0.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GHSA-6w5w-56vc-rg6h

References

github.com

Credits

OpenSSF: Package Analysis · finder

Scan your dependencies

O3 Security blocks malicious packages like this at install time and in CI.

Supply-chain protection