Copy-Fail Exploit — Root Access in Seconds on Linux Systems

Introduction In the evolving landscape of cybersecurity, some vulnerabilities stand out not because of complexity—but because of their simplicity and impact. One such critical flaw is CVE-2026-31431, widely known as the “Copy-Fail” exploit. Disclosed in April 2026, this vulnerability affects almost every major Linux distribution released since 2017, making it one of the most dangerous local privilege escalation flaws […]