Which versions of @mastra/fastembed are malicious?

The following npm versions of @mastra/fastembed are flagged malicious: 1.1.3. Treat any of these as compromised.

How do I remediate @mastra/fastembed if I installed it?

Remove @mastra/fastembed 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 @mastra/fastembed part of a known attack campaign?

Yes — @mastra/fastembed is associated with the GHSA-7wrg-5c4f-2ph2 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 @mastra/fastembed 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 @mastra/fastembed and packages like it before any post-install script runs.

Malicious package

@mastra/fastembednpm

Malicious code in @mastra/fastembed (npm) Remove it immediately and rotate any exposed credentials.

MAL-2026-5948

Immediate action

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

npm uninstall @mastra/fastembed

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

1 flagged

1.1.3

Indicators of compromise (SHA-256)

c0da5948a94944695bcec24b99ac8a6b9ae7f5f31e8407f8c731379a6fda79c6

a8b0aecd6b9291e558b0b0fb6c48d70ee9d0d60e0ecf1732ce8b736d46261fc5

Frequently asked questions

No. @mastra/fastembed on npm has been identified as a malicious package (version 1.1.3 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GHSA-7wrg-5c4f-2ph2

References

github.com

Scan your dependencies

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

Supply-chain protection