Quick Facts
- Category: Cybersecurity
- Published: 2026-04-30 18:40:14
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New Linux 'Copy Fail' Vulnerability Enables Root Access on Major Distributions
Cybersecurity researchers have disclosed details of a Linux local privilege escalation (LPE) flaw that could allow an unprivileged local user to obtain root. The high-severity vulnerability tracked as CVE-2026-31431 (CVSS score: 7.8) has been codenamed Copy Fail by Xint.io and Theori.
Key Details
"An unprivileged local user can write four controlled bytes into the page cache of any readable file on a Linux
Summary
This article covers the key aspects of new linux 'copy fail' vulnerability enables root access on major distributions. The topic continues to evolve as new developments emerge in this space.