CVE-2026-18089

Net::SAML2 for Perl versions before 0.86 is vulnerable to a SAML authentication bypass when no trust anchor is configured. The root cause is that verify_xml uses the response-embedded certificate (dsig:KeyInfo/dsig:X509Certificate) and returns early if there are no anchors and no cacert, enabling...

CVE-2026-18092

Net::SAML2 for Perl is affected prior to version 0.86. The vulnerability arises because new_from_xml reads assertion identity (NameID, attributes, SessionIndex, etc.) using document-wide XPath (e.g., //saml:Assertion/saml:AttributeStatement/saml:Attribute, //saml:Subject/saml:NameID) instead of t...

CVE-2026-18108

CVE-2026-18108 affects Net::SAML2 for Perl, before version 0.86. The vulnerability arises when _verify_encrypted_assertion decrypts an EncryptedAssertion and returns it as verified if there is no dsig:Signature; signature/trust checks run only when a signature exists. As a result, an unsigned dec...