{"id":"CVE-2019-3465","aliases":["GHSA-pqm6-cgwr-x6pf"],"url":"https://o3.security/vulnerability/CVE-2019-3465","summary":"Signature validation bypass in XmlSecLibs","details":"Rob Richards XmlSecLibs, all versions prior to v3.0.3, as used for example by SimpleSAMLphp, performed incorrect validation of cryptographic signatures in XML messages, allowing an authenticated attacker to impersonate others or elevate privileges by creating a crafted XML message.","published":"2019-11-07T20:15:11.090Z","modified":"2026-10-24T10:47:43.321830250Z","cvss":{"score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":{"score":0.02988,"percentile":0.86658,"asOf":"2026-09-17"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"robrichards/xmlseclibs","fixedVersion":"3.0.4"},{"ecosystem":"Packagist","name":"robrichards/xmlseclibs","fixedVersion":"2.1.1"}],"fix":{"url":"https://github.com/robrichards/xmlseclibs/commit/0a53d3c3aa87564910cae4ed01416441d3ae0db5","label":"robrichards/xmlseclibs@0a53d3c"},"references":[{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7KID7C4AZPYYIZQIPSLANP4R2RQR6YK3/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AB34ILMJ67CUROBOR6YPKB46VHXLOAJ4/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BBKVDUZ7G5ZOUO4BFJWLNJ6VOKBQJX5U/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BNFMY5RRLU63P25HEBVDO5KAVI7TX7JV/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ESKJTWLE7QZBQ3EKMYXKMBQG3JDEJWM6/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HBE2SJSXG7J4XYLJ2H6HC2VPPOG2OMUN/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MAWOVYLZKYDCQBLQEJCFAAD3KQTBPHXE/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OCSR3V6LNWJAD37VQB6M2K7P4RQSCVFG/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XBSSRV5Q7JFCYO46A3EN624UZ4KXFQ2M/"},{"type":"WEB","url":"https://www.tenable.com/security/tns-2019-09"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2019/11/msg00003.html"},{"type":"ADVISORY","url":"https://simplesamlphp.org/security/201911-01"},{"type":"ADVISORY","url":"https://www.debian.org/security/2019/dsa-4560"},{"type":"REPORT","url":"https://seclists.org/bugtraq/2019/Nov/8"},{"type":"FIX","url":"https://github.com/robrichards/xmlseclibs/commit/0a53d3c3aa87564910cae4ed01416441d3ae0db5"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2019-3465"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XBSSRV5Q7JFCYO46A3EN624UZ4KXFQ2M"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OCSR3V6LNWJAD37VQB6M2K7P4RQSCVFG"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MAWOVYLZKYDCQBLQEJCFAAD3KQTBPHXE"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HBE2SJSXG7J4XYLJ2H6HC2VPPOG2OMUN"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ESKJTWLE7QZBQ3EKMYXKMBQG3JDEJWM6"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BNFMY5RRLU63P25HEBVDO5KAVI7TX7JV"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BBKVDUZ7G5ZOUO4BFJWLNJ6VOKBQJX5U"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AB34ILMJ67CUROBOR6YPKB46VHXLOAJ4"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7KID7C4AZPYYIZQIPSLANP4R2RQR6YK3"},{"type":"WEB","url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/robrichards/xmlseclibs/CVE-2019-3465.yaml"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-24T10:47:43.321830250Z"}}