CVE-2026-9487 - XML::Sig versions before 0.71 for Perl allow signature wrapping via duplicate ID

CVE-2026-9487 - XML::Sig versions before 0.71 for Perl allow signature wrapping via duplicate ID

https://cvefeed.io/rssfeed/latest.atom / Mon, 08/03/2026 - 19:09
CVE ID :CVE-2026-9487
Published : Aug. 3, 2026, 2:16 p.m. | 2 hours, 37 minutes ago
Description :XML::Sig versions before 0.71 for Perl allow signature wrapping via duplicate ID. _get_signed_xml() in lib/XML/Sig.pm, called from verify(), resolves the SignedInfo Reference/@URI to a node with the XPath expression "//*[@ID='$id']" 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. 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.
Severity: 0.0 | NA
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