{"id":"CVE-2023-34205","aliases":["GHSA-jqvr-j2vg-gjrv","GO-2023-1826"],"url":"https://o3.security/vulnerability/CVE-2023-34205","summary":"Signature validation bypass in github.com/moov-io/signedxml","details":"In Moov signedxml through 1.0.0, parsing the raw XML (as received) can result in different output than parsing the canonicalized XML. Thus, signature validation can be bypassed via a Signature Wrapping attack (aka XSW).","published":"2023-05-30T00:00:00Z","modified":"2026-08-12T03:51:44.966171925Z","cvss":{"score":9.1,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"},"epss":{"score":0.00389,"percentile":0.31968,"asOf":"2026-08-14"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/moov-io/signedxml","fixedVersion":"1.1.0"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/34xxx/CVE-2023-34205.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-34205"},{"type":"REPORT","url":"https://github.com/moov-io/signedxml/issues/23"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:44.966171925Z"}}