---
title: "Official Claude Code VS Code Extension Compromised to Install Persistent SSH Backdoor"
type: signal
url: https://frontiernewswire.com/s/official-claude-code-vs-code-extension-compromised-to-install-d53c08b0
published: 2026-10-30T08:55:47.000Z
byline: "Source: The Hacker News"
---

# Official Claude Code VS Code Extension Compromised to Install Persistent SSH Backdoor

Source: The Hacker News · Published 2026-10-30 · Canonical: https://frontiernewswire.com/s/official-claude-code-vs-code-extension-compromised-to-install-d53c08b0

Cybersecurity researchers have disclosed that the official Anthropic Claude Code extension was compromised on the Open VSX registry to install a persistent SSH backdoor on infected hosts. The issue has since been traced to the compromise of the Cursor Marketplace, prompting the AI coding platform Cursor to briefly take down the service to remove the malware. "We identified a security incident

In this story: [Claude Code](https://frontiernewswire.com/models/claude-code), [Anthropic](https://frontiernewswire.com/companies/anthropic), [AI security](https://frontiernewswire.com/topics/ai-security)

## Sources

- [Read the original at The Hacker News](https://thehackernews.com/2026/10/official-claude-code-vs-code-extension.html)

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