{"id":14729,"date":"2026-09-04T19:02:10","date_gmt":"2026-09-04T11:02:10","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-14741"},"modified":"2026-09-04T19:02:10","modified_gmt":"2026-09-04T11:02:10","slug":"cve-2026-14741","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-14741","title":{"rendered":"CVE-2026-14741 [HIGH] &#8211; HTTP::Date versions before 6.08 for Perl allow CPU exhaustion via polynomial regex backtra"},"content":{"rendered":"<p>HTTP::Date versions before 6.08 for Perl allow CPU exhaustion via polynomial regex backtracking in parse_date.<\/p>\n<p>parse_date() matches the date string against a chain of alternative regexes, and str2time() delegates to it. Several of these patterns place unbounded quantifiers next to each other before a trailing `s*$` anchor. A valid date prefix followed by a long interior run of digits, letters, or whitespace and a single trailing byte that defeats the final match forces the engine to repartition the run, giving polynomial (about quadratic) backtracking. A header value of a few tens of kilobytes runs for tens of seconds of CPU.<\/p>\n<p>HTTP::Date parses timestamps such as HTTP `Date`, `Expires`, and `Last-Modified` headers, which commonly originate from untrusted sources. Any caller that passes an untrusted date header to str2time() or parse_date() can be driven to consume unbounded CPU, a denial of service.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>HTTP::Date versions before 6.08 for Perl allow CPU exhaustion via polynomial regex backtracking in parse_date.<\/p>\n<p>parse_date() matches the date string against a chain of alternative regexes, and str2tim<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-14729","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/14729","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=14729"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=14729"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=14729"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}