Malicious code in hardhat-spack (npm)

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (e59c971c63de9d0a7f66c26093f528164990af10eca00a3a36b97d0c8b0a6d0d) The package is published as hardhat-spack but presents itself internally as a pino-like logger. Its main export is a middleware factory that spawns lib/caller.js as a detached child process. caller.js and lib/const.js define a fake process.env object whose DEV_API_KEY, DEV_SECRET_KEY, and DEV_SECRET_VALUE are base64 blobs; DEV_API_KEY decodes to https://iphub-encrypted.vercel.app/api/auth/f1f097d93c318c92f0c5. caller.js base64-decodes that URL, POSTs to it, and passes the response body to `new Function.constructor("require", s)` and invokes it with the real require, giving the fetched JavaScript full Node capabilities (filesystem, child_process, network). The request is retried up to five times and failures are swallowed. The destination host is disposable Vercel infrastructure unrelated to any declared purpose, the URL and credential-shaped values are concealed with base64, and the executed code is attacker-mutable at any time.

Source published

5 Oct 2026 03:33:15 UTC

Source modified

5 Oct 2026 04:15:05 UTC

Observed here

24 Oct 2026 13:17:17 UTC

Source terms

OSV · upstream source license applies

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · OSV · upstream source license applies. Source text is retained; field grouping and change labels are provided by ChangeIntel.