{"id":4400,"date":"2026-09-04T18:46:28","date_gmt":"2026-09-04T10:46:28","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-9487"},"modified":"2026-09-04T18:46:28","modified_gmt":"2026-09-04T10:46:28","slug":"cve-2026-9487","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-9487","title":{"rendered":"CVE-2026-9487 [CRITICAL] &#8211; XML::Sig versions before 0.71 for Perl allow signature wrapping via duplicate ID.\n\n_get_si"},"content":{"rendered":"<p>XML::Sig versions before 0.71 for Perl allow signature wrapping via duplicate ID.<\/p>\n<p>_get_signed_xml() in lib\/XML\/Sig.pm, called from verify(), resolves the SignedInfo Reference\/@URI to a node with the XPath expression &#8220;\/\/*[@ID=&#8217;$id&#8217;]&#8221; and returns the first node of the resulting node set. A document in which two elements share that ID value is accepted: the digest and signature are checked against whichever element comes first in document order, and the duplicate is not detected.<\/p>\n<p>Such a document verifies successfully while an application that resolves the same ID independently can read the second, attacker supplied element; in a SAML2 context this places the contents of an Assertion under attacker control.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>XML::Sig versions before 0.71 for Perl allow signature wrapping via duplicate ID.<\/p>\n<p>_get_signed_xml() in lib\/XML\/Sig.pm, called from verify(), resolves the SignedInfo Reference\/@URI to a node with the <\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-4400","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/4400","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=4400"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4400"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4400"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}