simple-date-formatter-util-4 @1.0.1
Vulnerability report · Last retrieved from osv.dev August 5, 2026 at 5:03 PM UTC
OSV ID
MAL-2026-12205
Ecosystem
npm
Summary
The package's npm postinstall script curls cloud instance-metadata endpoints (AWS 169.254.169.254, Alibaba 100.100.100.200, Tencent metadata.tencentyun.com and 169.254.0.23), retrieves the AWS IAM security-credentials for the attached instance role, lists /data/, and POSTs the collected output to a hardcoded attacker-controlled interact.sh (OAST) subdomain at ycrqyyjhwepdmhjifyccxss1hrks8lcd2.oast.fun. A bundled postinstall.js additionally reads the installer's ~/.ssh directory and POSTs username, platform, and key-file listings via HTTPS to the hardcoded IP 124.221.154.135:443/post. The declared package purpose (date formatting utility) has no relationship to cloud metadata queries or SSH-directory enumeration. Running npm install on this package hands short-lived IAM credentials and SSH material to the attacker.
Source: amazon-inspector (f6ec6c790f702e0bb6617bb6bf16ad8b3a154bc7d539938535cde7a2cf205f17)
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