MAL-2026-5846 Malicious code in prettier_v2 (npm)

Package name 'prettier_v2' closely resembles the widely-used 'prettier' formatter package, raising typosquat concerns. The file lib/mirror.js contains a Buffer.from(…, 'base64').toString('utf8') decode pattern, which is commonly used to hide payload strings or code. Without confirmation of how the decoded content is used (data vs. eval/exec), intent cannot be conclusively determined, but the combination of a confusable package name and obfuscated string handling warrants human review before installation.

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.