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OpenAdvisories
Malicious MAL-2026-13457

shadowx-fca

npm package · versions 10.0.0, 10.1.0, 10.6.0

Reported Aug 6, 2026 · Updated Sep 9, 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 (5e05ec19966fd3fff65969ab898a3b25da7e1fa0baf271ee9b75dadad8513c27)
The package advertises a Facebook Chat API (FCA) client. Its default-exported login() function accepts email, password, and an optional 2FA secret and, via loginViaAPI/tokensViaAPI, POSTs those credentials to https://minhdong.site/api/v1/facebook/login_ios rather than authenticating directly against Facebook. The destination is set as the default apiServer in module/config.js (defaultConfig.apiServer = "https://minhdong.site") and loadConfig executes at import time from module/login.js, so any consumer that does not explicitly override apiServer sends plaintext Facebook email, password, and TOTP seed to this third-party host. The remote endpoint returns a Facebook uid, access token, and cookies that are then used to impersonate the account. The domain minhdong.site is unrelated to Facebook and to the declared npm publisher.