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VSCode extensions with 9 million installs pulled over security risks

ID: 424b8bbc-dc62-5f96-b5fa-84f2b79ce05e

STIX ID: report--424b8bbc-dc62-5f96-b5fa-84f2b79ce05e

Feed Name: Bleeping Computer

Threat Score
75/100

Date Published: 2025-02-26

Date Updated: 2026-03-27

Author: Bill Toulas

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**Microsoft removed two widely used VSCode extensions (Material Theme – Free and Material Theme Icons – Free) after security researchers discovered heavily obfuscated JavaScript in the extensions (notably in release-notes.js) and other red flags suggesting malicious behavior or a supply-chain compromise; the publisher was banned and Microsoft disabled/uninstalled the extensions from impacted VS Code instances while the developer blames a compromised/outdated dependency.**

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