{"id":246694,"date":"2026-11-06T02:22:38","date_gmt":"2026-11-06T08:22:38","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2026\/11\/openssh-flaw-lets-attackers-log-into-password-disabled-linux-accounts"},"modified":"2026-11-06T02:22:38","modified_gmt":"2026-11-06T08:22:38","slug":"openssh-flaw-lets-attackers-log-into-password-disabled-linux-accounts","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2026\/11\/openssh-flaw-lets-attackers-log-into-password-disabled-linux-accounts","title":{"rendered":"OpenSSH flaw lets attackers log into password-disabled Linux accounts"},"content":{"rendered":"\n<p>A newly disclosed flaw involving OpenSSH and musl, dubbed \u201c*sshole,\u201d allows attackers to log in to certain Alpine Linux and other musl-based Linux accounts configured to block password authentication simply by entering an oversized password.<\/p>\n<p>The flaw only affects OpenSSH servers running on Linux distributions that use the musl C library, including Alpine Linux, OpenWrt, Buildroot, and Yocto, under certain authentication configurations.<\/p>\n<p>Security researcher Ozgun Kultekin, who discovered and <a href=\"https:\/\/sshhole.com\/\" rel=\"nofollow noopener\" target=\"_blank\">released details<\/a> on the vulnerability today, says the flaw has existed since 2016 and stems from how OpenSSH handles password verification errors on systems using the musl C library.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A newly disclosed flaw involving OpenSSH and musl, dubbed \u201c*sshole,\u201d allows attackers to log in to certain Alpine Linux and other musl-based Linux accounts configured to block password authentication simply by entering an oversized password. The flaw only affects OpenSSH servers running on Linux distributions that use the musl C library, including Alpine Linux, OpenWrt, [\u2026]<\/p>\n","protected":false},"author":427,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1523,1492],"tags":[],"class_list":["post-246694","post","type-post","status-publish","format-standard","hentry","category-computing","category-security"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/246694","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/427"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=246694"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/246694\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=246694"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=246694"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=246694"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}