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.”An unprivileged local user can write four controlled bytes into the page cache of any readable file on a Linux
First seen on thehackernews.com
Jump to article: thehackernews.com/2026/04/new-linux-copy-fail-vulnerability.html
![]()

