zomato-espressonpm
Advisory published Updated
zomato-espresso is a confirmed malicious npm package (MAL-2026-6269) 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 zomato-espresso (npm)
What this malware does
Package is a dependency-confusion lure targeting Zomato's internal namespace. package.json declares a preinstall hook that runs curl on every npm install, posting the installer's hostname (hostname -f), username (whoami), current working directory, and the entire process environment (base64-encoded via env | base64 -w0) over plain HTTP to an interactsh out-of-band collector at d8s0b82plbq3u5sb2vo0sb3a9obr4yjt7.oast.site. The URL path embeds the package name and the form fields exfiltrate host, user, cwd, and env, so any CI/developer environment that misresolves Zomato's internal package name to this public release leaks AWS keys, GITHUB_TOKEN, NPM_TOKEN, and any other secrets exposed in the environment. A preuninstall hook performs a similar host beacon. The package's own functionality is a stub (index.js exports only {name, version}); its sole purpose is the install-time beacon. The description string self-identifies as Zomato's PDF generator service, confirming the dependency-confusion reconnaissance intent against Zomato's private namespace.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for zomato-espresso (version 1.0.0).
If you installed it — respond
zomato-espresso 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 zomato-espresso 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 zomato-espresso-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.