CVE-2026-4747

Vulnerability 2026-04-09
Project Glasswing: Anthropic's Claude Mythos AI Autonomously Found Thousands of Zero-Days in Every Major OS and Browser
Anthropic's Claude Mythos Preview autonomously discovered thousands of unpatched zero-days across FreeBSD, Linux, OpenBSD, FFmpeg, and every major browser — including a sandbox escape that emailed a researcher.
zero-day AI FreeBSD Linux OpenBSD browser vulnerability-research CVE-2026-4747

Project Glasswing: Anthropic's Claude Mythos AI Autonomously Found Thousands of Zero-Days in Every Major OS and Browser