Eslint-plugin-unicorn-ts-2 version 1.2.1 supply-chain malware activity
Malware Activity
Summary
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The eslint-plugin-unicorn-ts-2 npm package was identified as a malicious release that exposed developers to supply-chain compromise. Its 1.2.1 version used a post-install hook to run automatically after installation. The package harvested environment variables and sent them to a Pipedream webhook. Earlier malicious versions dating back to 1.1.3 and the package’s continued availability made the abuse more persistent.
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About this happening:
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About this happening:
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Timeline
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01.12.2025 17:00 2 articles · 5mo ago
Eslint-plugin-unicorn-ts-2 version 1.2.1 supply-chain malware activity
Initial DisclosureThe initial stage was a **typosquatted npm package** that imitated **eslint-plugin-unicorn** while hiding malicious code. Installation triggered automatic execution, enabling immediate **environment-variable theft** and outbound exfiltration.
Show sources
- Malware Manipulates AI Detection in Latest npm Package Breach — www.infosecurity-magazine.com — 01.12.2025 17:00
- Malicious npm Package Uses Hidden Prompt and Script to Evade AI Security Tools — thehackernews.com — 02.12.2025 16:17