{"id":"CVE-2026-89043","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-89043","summary":"passport-saml-encrypted through 0.1.13 contains an XML signature wrapping vulnerability where signature verification and assertion extraction use independent XPath lookups with no cross-validation.…","details":"passport-saml-encrypted through 0.1.13 contains an XML signature wrapping vulnerability where signature verification and assertion extraction use independent XPath lookups with no cross-validation. Attackers holding any validly signed SAML message can prepend a forged unsigned assertion that gets accepted as the verified identity while the genuine signature validates against the original assertion.","published":"2026-09-10T18:18:16.073","modified":"2026-09-10T18:18:16.073","cvss":{"score":7.4,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://github.com/krakenjs/passport-saml-encrypted"},{"type":"WEB","url":"https://github.com/krakenjs/passport-saml-encrypted/blob/v0.1.13/lib/saml.js#L256"},{"type":"WEB","url":"https://github.com/krakenjs/passport-saml-encrypted/blob/v0.1.13/lib/saml.js#L328"},{"type":"WEB","url":"https://github.com/krakenjs/passport-saml-encrypted/issues/30"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/passport-saml-encrypted-through-0.1.13-xml-signature-wrapping-via-assertion-prepending"},{"type":"WEB","url":"https://github.com/krakenjs/passport-saml-encrypted/issues/30"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-09-10T18:18:16.073"}}