A weaponized Claude Code extension found on Open VSX can give attackers persistent remote access to developer systems by ...

A malicious version of Anthropic's Claude Code VS Code extension was distributed through Cursor's extension marketplace for ...

A tampered build of Anthropic's Claude Code extension for Visual Studio Code, labeled version 2.1.313, was found to contain a 66-line loader ...

A malicious version of Anthropic's Claude Code extension for VS Code and Cursor was distributed through official marketplaces ...

Anthropic has denied allegations that a malicious version of the official Claude Code extension published to Cursor’s ...

A malicious Claude Code extension on Open VSX carried a hidden backdoor, putting developers' machines at risk.

According to Cursor, turning on SSH requires admin rights the extension lacks on most Mac and Windows hosts, and on those machines the attacker could not have logged in through the tunnel. The company ...

Cursor reported on October 29, 2026 that a maliciously modified build of the Claude Code extension, Anthropic.claude-code 2.1.313, was available in its extension marketplace and tries to install a ...

The official Claude Code extension on the Cursor development environment’s marketplace contained an SSH backdoor.

A compromised version of Anthropic’s Claude Code extension was available in Cursor’s extension marketplace for about 11 hours ...

A tampered Claude Code 2.1.313 build added an svc-telemetry SSH key and persistence; Cursor says up to 5,000 users installed ...

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