{"id":78359,"date":"2026-05-12T20:46:21","date_gmt":"2026-05-12T17:16:21","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-5089-yamlsyck-versions-before-1-38-for-perl-has-an-out-of-bounds-read\/"},"modified":"2026-05-12T20:46:21","modified_gmt":"2026-05-12T17:16:21","slug":"cve-2026-5089-yamlsyck-versions-before-1-38-for-perl-has-an-out-of-bounds-read","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-5089-yamlsyck-versions-before-1-38-for-perl-has-an-out-of-bounds-read\/","title":{"rendered":"CVE-2026-5089 &#8211; YAML::Syck versions before 1.38 for Perl has an out-of-bounds read"},"content":{"rendered":"<p>CVE ID :CVE-2026-5089<\/p>\n<p>  Published : May 12, 2026, 5:16 p.m. | 41\u00a0minutes ago<\/p>\n<p>  Description :YAML::Syck versions before 1.38 for Perl  has an out-of-bounds read.<\/p>\n<p>The base60 (sexagesimal) parsing code in perl_syck.h has a buffer underflow bug in both int#base60 and float#base60 handlers. When processing the leftmost segment of a colon-separated value (e.g., the 1 in 1:30:45), the inner while loop can decrement a pointer past the start of the string buffer:<\/p>\n<p>    while ( colon &gt;= ptr &amp;&amp; *colon != &#8216;:&#8217; )<br \/>\n    {<br \/>\n        colon&#8211;;<br \/>\n    }<br \/>\n    if ( *colon == &#8216;:&#8217; ) *colon = &#8221;;  \/\/ colon may be ptr-1 here<\/p>\n<p>When no colon is found (final\/leftmost segment), colon becomes ptr-1, and the subsequent *colon dereference reads one byte before the allocated buffer.<\/p>\n<p>  Severity: 0.0 | NA<\/p>\n<p>  Visit the link for more details, such as CVSS details, affected products, timeline, and more&#8230;\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CVE ID :CVE-2026-5089 Published : May 12, 2026, 5:16 p.m. | 41\u00a0minutes ago Description :YAML::Syck versions before 1.38 for Perl has an out-of-bounds read. The base60 (sexagesimal) parsing code in perl_syck.h has a buffer underflow bug in both int#base60 and float#base60 handlers. When processing the leftmost segment of a colon-separated value (e.g., the 1 in &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-78359","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/78359","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=78359"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/78359\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=78359"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=78359"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=78359"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}