IntroductionWorking on a black screen, barely using the mouse, and opening and editing files one after another using only the ...
A malicious version of Anthropic's Claude Code VS Code extension was distributed through Cursor's extension marketplace for ...
News has been circulating that "the Claude Code extension contained a backdoor." Since it's a tool I use every day, I think ...
A weaponized Claude Code extension found on Open VSX can give attackers persistent remote access to developer systems by ...
A threat actor published a malicious Claude Code extension to the Cursor marketplace in a new supply chain attack.
Cursor has disclosed malicious versions of the Anthropic.claude-code extension in its VS Code Extension Marketplace that ...
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 ...
Anthropic has denied allegations that a malicious version of the official Claude Code extension published to Cursor’s ...
Cursor has confirmed that malicious Claude Code extension packages were available through its VS Code Extension Marketplace ...
The compromised versions attempted to plant SSH keys and establish persistent remote access; Anthropic says an attacker used access to Cursor’s marketplace to publish the tampered extension.
According to Cursor, turning on SSH requires admin rights the extension lacks on most Mac and Windows hosts, and on those ...