Claude, Anthropic’s artificial intelligence system, discovered a zero-click Linux vulnerability, identified as CVE-2026-98432, that enables remote code execution on a server without authentication or a user click. The vulnerability received a 9.8 out of 10 score and was described as the “worst bug in the history of the internet.” According to Anthropic, a series of operations carried out by Claude turned a relatively niche error into an easily exploitable flaw. Anthropic researchers reportedly took control of certain Linux machines within 53 minutes. Amazon, Red Hat, Ubuntu and other Linux ecosystem partners worked on applying patches and upgrading infrastructure.
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