@catamania/front-componentsnpm
Advisory published Updated
@catamania/front-components is a confirmed malicious npm package (MAL-2026-13620) that steals credentials and exfiltrates sensitive data (malicious version 1.0.5). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in @catamania/front-components (npm)
What this malware does
The package's postinstall.js runs automatically on npm install and collects host reconnaissance data — os.hostname(), os.userInfo() username, process.cwd(), and the list of environment variable names from process.env — then POSTs the JSON payload via https.request to a hardcoded webhook.site capture URL (webhook.site/4b333dc6-9783-4f6b-82fa-db9795caa938). Environment variable values are masked but key names and host identifiers still leave the installer's machine on every install. The package's index.js contains only a trivial 5-line Vue button component, which does not correspond to the install-time beaconing behavior; the shape is consistent with a scoped dependency-confusion or reconnaissance probe measuring which internal build hosts resolve the @catamania scope to the public registry.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for @catamania/front-components (version 1.0.5).
If you installed it — respond
@catamania/front-components 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 @catamania/front-components 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 @catamania/front-components-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.