axios-fastnpm
Advisory published Updated
axios-fast is a confirmed malicious npm package (MAL-2026-14029) that steals credentials and exfiltrates sensitive data (malicious versions 1.0.0, 1.0.1). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in axios-fast (npm)
What this malware does
[email protected] declares a preinstall lifecycle script in package.json that runs a Node one-liner which POSTs the entire process.env of the installing machine to a hardcoded webhook.site inbox (https://webhook.site/31e82bcd-a220-42e6-82f0-4f082e8fa80e/). The script fires automatically on npm install, before any code is reviewed, and dumps all environment variables — routinely including AWS_*, NPM_TOKEN, GH_TOKEN, and other CI/build secrets — to a third-party attacker-controlled endpoint. The package name typosquats the popular axios HTTP client but its shipped functionality is limited to this install-time exfiltration.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for axios-fast (2 malicious versions).
If you installed it — respond
axios-fast 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 axios-fast 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 axios-fast-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.