ssh-keysign-pwn (CVE-2026-46333): Are Your Keys Leaking?

The newly disclosed ssh-keysign-pwn local privilege escalation vulnerability (CVE-2026-46333) allows low-privilege users to duplicate sensitive file descriptors during process teardown. Security Researcher Sarah L. analyzes the core __ptrace_may_access kernel race condition, provides instant verification commands for running hosts, and details vital SSH key rotation procedures.