Malicious code in chai-testing (npm)

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No exploitation or prediction data is available here for these CVEs. This does not mean they are safe or unlikely to be exploited.

--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (da6bebc82e500e38b0ab9c507b1d56c18a05a1ffd04fcee60f0dcad991c8944a) The package's main entry (index.js) spawns a detached `node lib/caller.js` when the module is required. caller.js base64-decodes a hardcoded URL (https://ipcheck-hashed.vercel.app/api/auth/...) stored in a fake `process.env.DEV_API_KEY` constant, POSTs to that endpoint via axios, and executes the returned body by constructing a Function and invoking it with Node's `require`. The endpoint and header values are base64-encoded and decoded with atob at runtime to hide the destination from review. The package name and README metadata mimic legitimate chai/pino testing and logging libraries, but the shipped code is unrelated to any advertised functionality. Requiring the module — including via the exported middleware, which invokes the dropper as a side effect — triggers execution of attacker-controlled JavaScript with full Node privileges on the installer's host.

Source published

21 Sep 2026 03:20:32 UTC

Source modified

21 Sep 2026 03:30:17 UTC

Saved 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

Source: osv · OSV · upstream source license applies. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.