EventCybersecurityOctober 30, 2026

Malicious Claude Code extension 2.1.313 found in Cursor Marketplace

Read original source →cursor.com

A tampered Anthropic.claude-code 2.1.313 was live in the Cursor VS Code Marketplace from ~2:27am to 1:35pm PT, affecting at most 5,000 users. It tried to install a persistent SSH backdoor; errors in the code meant the step would fail without admin rights.

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