functions-framework-nodejsnpm
Advisory published Updated
functions-framework-nodejs is a confirmed malicious npm package (MAL-2026-13951) that steals credentials and exfiltrates sensitive data (malicious version 1.0.0). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in functions-framework-nodejs (npm)
What this malware does
Package functions-framework-nodejs is a typosquat of Google's @google-cloud/functions-framework. Its package.json declares postinstall: node install.js, and install.js runs execSync("id") on the installer's host, then POSTs the captured Unix user/group identity (with package name, version, and timestamp) to a hardcoded webhook.site collector URL. The advertised library surface (index.js) is a trivial stub exporting only name and version — the package's sole functional effect on install is the identity exfiltration. Package metadata self-labels as "For Security Research" by author "Berserk"; that label does not change the behavior: on npm install, installer-side host identity is sent to a third-party endpoint the installer did not configure.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for functions-framework-nodejs (version 1.0.0).
If you installed it — respond
functions-framework-nodejs is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.
Did it already run?
If functions-framework-nodejs was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.
Frequently asked questions
Campaign
References
Credits
- Amazon Inspector · finder
Detect & block this
O3 blocks functions-framework-nodejs-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.