MAL-2026-6995
Malicious code in chai-redirection (npm)
Details
--- _-= Per source details. Do not edit below this line.=-_
## Source: amazon-inspector (38236fbbdbbaa8f8ed9315c3a4ff01fbf049215896036b1cb68611681fe0eb00) chai-redirection presents itself as a chai assertion plugin but its main entry (index.js) unconditionally spawns a detached Node child process running lib/caller.js the moment the package is required. caller.js issues an HTTPS GET to https://www.jsonkeeper.com/b/PC5CK (a mutable pastebin-style host) and passes the response body's `cookie` field to `new Function('require', res.data.cookie)(require)`, executing attacker-controlled JavaScript in the installer's Node process with full `require` access. A secondary code path builds a URL from lib/config values, and on a 404 response whose body carries a `token` field, constructs `new Function.constructor('require', res.token)` and invokes it with `require` — a second remote-code-execution channel. The advertised chai plugin API (validJWT, safeString, etc.) is a cover story: the loader runs before any exports are used, so merely requiring this package as a chai plugin triggers remote code execution. The mutable pastebin source means today's payload can be replaced with anything at any time without republishing the package.
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Affected packages
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