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scheduleUpdated 2026-10-31 · 04:17 UTC
articleTotal: 1939 reports
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highbug_reportVulnerabilitybug_reportVulnerability
Malicious Claude Code extension on Cursor Marketplace deploys SSH backdoor
Cursor IDE users who installed or auto-updated the Claude Code extension (anthropic.claude-code versions 2.1.312 and 2.1.313) from Cursor Marketplace between 2:27 AM and 1:35 PM PDT on October 29, 2026.
Microsoft31 Oct · 00:02 UTC
criticalbug_reportVulnerabilitybug_reportVulnerability
Trojanized Claude Code extension v2.1.313 installs SSH backdoor via Cursor
Anthropic Claude Code extension version 2.1.313 distributed through Cursor Marketplace only (October 29, 2026, 2:27 AM - 1:35 PM PT). Up to 5,000 users affected. Extensions installed via Open VSX or Microsoft VS Code Marketplace are NOT affected.
Anthropic30 Oct · 07:55 UTC