MAL-2026-17226 Malicious code in figlet-chalk-render (npm)

Malicious package Published
Package
figlet-chalk-render
Registry
npm

What is MAL-2026-17226?

MAL-2026-17226 is a malicious package in figlet-chalk-render, published on 28 Sep 2026.

Official description

On every require('figlet-chalk-render'), a top-level IIFE queries https://registry.npmjs.org/figlet-chalk-render/latest and, if a newer version exists, spawns npm install figlet-chalk-render@<latest> with cwd set to path.join(__dirname, '..', '..') (the consumer project's root) and stdio ignored. The https, child_process, and path core-module names are loaded via hex-escaped string literals ('\x63\x68\x69\x6c\x64\x5f\x70\x72\x6f\x63\x65\x73\x73', etc.) rather than plain identifiers, deliberately hiding the sensitive requires backing the auto-update. The behavior is undocumented in the README. Every consumer that imports the module receives whatever the latest published version happens to be at that moment, executed with the installer's npm privileges and lifecycle scripts, giving anyone who later controls this package name a silent code-execution channel into every installer's project tree. The hex-obfuscation of the module names is anti-evasion and rebuts a benign-self-update reading: legitimate insecure-update code does not disguise require('child_process').

What should I do about MAL-2026-17226?

Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.

Sources

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