{"id":"DEBIAN-CVE-2025-25291","details":"ruby-saml provides security assertion markup language (SAML) single sign-on (SSO) for Ruby. An authentication bypass vulnerability was found in ruby-saml prior to versions 1.12.4 and 1.18.0 due to a parser differential. ReXML and Nokogiri parse XML differently; the parsers can generate entirely different document structures from the same XML input. That allows an attacker to be able to execute a Signature Wrapping attack. This issue may lead to authentication bypass. Versions 1.12.4 and 1.18.0 fix the issue.","modified":"2026-09-01T16:06:11.549838873Z","published":"2025-03-12T21:15:42Z","upstream":["CVE-2025-25291"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2025-25291"}],"affected":[{"package":{"name":"ruby-saml","ecosystem":"Debian:12","purl":"pkg:deb/debian/ruby-saml?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.13.0-1","1.13.0-1+deb12u1","1.15.0-1","1.17.0-1"],"ecosystem_specific":{"urgency":"end-of-life"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-25291.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}