Which versions of chai-web3-testkit are malicious?

Every published version of chai-web3-testkit on npm is considered malicious. Remove the package entirely.

How do I remediate chai-web3-testkit if I installed it?

Remove chai-web3-testkit 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 chai-web3-testkit part of a known attack campaign?

Yes — chai-web3-testkit is associated with the GHSA-j8qr-4p5h-mwqj 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 chai-web3-testkit 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 chai-web3-testkit and packages like it before any post-install script runs.

Malicious package

chai-web3-testkitnpm

Malicious code in chai-web3-testkit (npm) Remove it immediately and rotate any exposed credentials.

MAL-2026-5699

Immediate action

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

npm uninstall chai-web3-testkit

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.

Malicious versions

all versions

Every published version of this package is considered malicious — remove it entirely.

Indicators of compromise (SHA-256)

08ecedb36b3feee0b20984ec8e0da248a8182e27d55eb1ed6fbcfdd26e7f325c

Frequently asked questions

No. chai-web3-testkit on npm has been identified as a malicious package (all published versions flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GHSA-j8qr-4p5h-mwqj

References

github.com

Scan your dependencies

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

Supply-chain protection