
Claude-Built Linux Exploit Targets Bug That Ubuntu Still Hasn't Patched
CVE-2026-98432 is a CVSS 9.8 Linux kernel race condition present since version 4.4. Anthropic says Claude, using an unreleased internal model, wrote a remote root exploit for it that needs a multipath TCP listener. Red Hat shipped fixes on 1 November 2026 (RHSA-2026:93412), while Ubuntu still lists 16.04 to 26.10 as vulnerable. Red Hat offers a partial firewall mitigation.
Offensive Security, AI Security· Published and added 2 Nov 2026






























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