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OpenAdvisories
Malicious MAL-2026-12325

@nextco/utils

npm package · versions 5.0.0

Reported Aug 5, 2026 · Updated Aug 5, 2026

If this package is installed

Remove it, treat the machine (or CI runner) as compromised, and rotate every secret, token and key it could access — from a different, clean machine.

Details

Source: amazon-inspector (2af3efee911b20157dcf0e84f2be91affddf4e34aac298e1959ea7090f08c4d2)
On require(), index.js unconditionally calls a telemetry() function at module top level that collects host reconnaissance (hostname, username, __dirname, cwd, OS/arch, Node version) and the list of environment variable names, base64-encodes the payload, and POSTs it over plain HTTP to the hardcoded host attacker.cl. The destination is not associated with the package's stated publisher (@nextco/utils / nextco.me) and the caller has no opt-out. The behavior fires simply by loading the module, giving an attacker installer host identifiers and an env-var name inventory usable to target follow-on credential theft.