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 (f47bf808132c7ac7ba3324f1e4dec6932c64eabb78e1030ce613267ea9a3cf5b)
On npm install, the package's postinstall hook runs canary.js, which collects the installer's hostname, username, current working directory, and selected environment variables and POSTs them over plain HTTP to a hardcoded Burp Collaborator OAST subdomain at 2pslbvbc3adfni1pbe9xy2b1asgj4cs1.oastify.com/bjm-canary. This is a dependency-confusion / reconnaissance beacon: installer-side identity and environment data leave the machine automatically on install to an attacker-controlled endpoint.