{"id":"CVE-2020-7711","aliases":["CVE-2020-7731","GHSA-gq5r-cc4w-g8xf","GHSA-mqqv-chpx-vq25","GHSA-prjq-f4q3-fvfr","GO-2020-0046","SNYK-GOLANG-GITHUBCOMRUSSELLHAERINGGOSAML2-608302"],"url":"https://o3.security/vulnerability/CVE-2020-7711","summary":"Duplicate Advisory: gosaml2 is vulnerable to NULL Pointer Dereference from malformed XML signatures","details":"This affects all versions of package github.com/russellhaering/goxmldsig. There is a crash on nil-pointer dereference caused by sending malformed XML signatures.","published":"2020-08-23T14:15:09.573Z","modified":"2026-07-08T06:49:53.037130195Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"Go","name":"github.com/russellhaering/gosaml2","fixedVersion":"0.7.0"},{"ecosystem":"Go","name":"github.com/russellhaering/goxmldsig","fixedVersion":"1.1.1"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMRUSSELLHAERINGGOXMLDSIG-608301"},{"type":"EVIDENCE","url":"https://github.com/russellhaering/goxmldsig/issues/48"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T06:49:53.037130195Z"}}