Malicious code in @cats-cdf/authentication (npm)
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (404569337a1e5fc46fff2584e052d2f9f99c3cb8d04e5fb3b5c5d633c178e01c) The package's preinstall lifecycle script runs on npm install and collects the installer's local username (whoami), hostname, and public IP address (fetched via ifconfig.me), then transmits them as query-string parameters in an HTTP GET request to a hardcoded subdomain of oast.fun (kwphewvexhjbtfduscqybx6q7c862eh0g.oast.fun). oast.fun is an out-of-band interaction/callback service commonly used for reconnaissance and exfiltration in dependency-confusion attacks. The behavior fires automatically on default install with no relation to any documented package purpose.
Malicious code in @cats-cdf/authentication (npm)
Description
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (404569337a1e5fc46fff2584e052d2f9f99c3cb8d04e5fb3b5c5d633c178e01c) The package's preinstall lifecycle script runs on npm install and collects the installer's local username (whoami), hostname, and public IP address (fetched via ifconfig.me), then transmits them as query-string parameters in an HTTP GET request to a hardcoded subdomain of oast.fun (kwphewvexhjbtfduscqybx6q7c862eh0g.oast.fun). oast.fun is an out-of-band interaction/callback service commonly used for reconnaissance and exfiltration in dependency-confusion attacks. The behavior fires automatically on default install with no relation to any documented package purpose.
Affected software
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Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-13478
- Osv Schema Version
- 1.7.4
- Aliases
- []
- Ecosystems
- ["npm"]
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a757399bf8831d539d91a28
Added to database: 08/07/2026, 05:56:41 UTC
Last updated: 08/07/2026, 05:56:41 UTC
Views: 1
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