{"id":3827,"date":"2026-04-30T09:24:00","date_gmt":"2026-04-30T09:24:00","guid":{"rendered":"http:\/\/infosec-daily.com\/?page_id=3827"},"modified":"2026-04-30T09:24:00","modified_gmt":"2026-04-30T09:24:00","slug":"new-linux-copy-fail-vulnerability-enables-root-access-on-major-distributions","status":"publish","type":"page","link":"https:\/\/infosec-daily.com\/?page_id=3827","title":{"rendered":"New Linux &#8216;Copy Fail&#8217; Vulnerability Enables Root Access on Major Distributions"},"content":{"rendered":"<p>Cybersecurity researchers have disclosed details of a Linux local privilege escalation (LPE) flaw that could allow an unprivileged local user to obtain root.<br \/>\nThe high-severity vulnerability tracked as CVE-2026-31431 (CVSS score: 7.8) has been codenamed Copy Fail by Xint.io and Theori.<br \/>\n&#8220;An unprivileged local user can write four controlled bytes into the page cache of any readable file on a Linux<\/p>","protected":false},"excerpt":{"rendered":"<p>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&hellip;<\/p>\n","protected":false},"author":1,"featured_media":3828,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"saved_in_kubio":false,"footnotes":""},"class_list":["post-3827","page","type-page","status-publish","has-post-thumbnail","hentry"],"kubio_ai_page_context":{"short_desc":"","purpose":"general"},"_links":{"self":[{"href":"https:\/\/infosec-daily.com\/index.php?rest_route=\/wp\/v2\/pages\/3827","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/infosec-daily.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/infosec-daily.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/infosec-daily.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/infosec-daily.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3827"}],"version-history":[{"count":0,"href":"https:\/\/infosec-daily.com\/index.php?rest_route=\/wp\/v2\/pages\/3827\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/infosec-daily.com\/index.php?rest_route=\/wp\/v2\/media\/3828"}],"wp:attachment":[{"href":"https:\/\/infosec-daily.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3827"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}