Cursor says up to 5,000 users affected by tampered Claude Code extension
Jake Thompson has a degree in Journalism from the University of North Dakota and has spent the last three years reporting for business publications in the region. He specializes in local finance, investment opportunities, and economic development.
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Oct 30 (Reuters) Cursor, the coding-tool company owned by SpaceX, said on Friday that a maliciously modified version of Anthropic’s Claude Code extension was available on its Cursor VS Code extension marketplace on Thursday, affecting up to 5,000 users. Here are some details: • Cursor said the extension was not developed by Anthropic and the maliciously modified extension was live on the marketplace from about 2:27 a.m. PT to 1:35 p.m. PT on Thursday • The extension attempted to collect host and user information such as hostname, username, operating system and public IP address • It also attempted to set up remote access for the attacker; Cursor said a key step would have failed on most machines because it requires administrator rights • Upon detection, Cursor removed the malicious version and blocked its distribution and shut down the marketplace as a precaution • The company then rebuilt the marketplace and brought it back online, it said • Cursor said the incide